In November 1977, CBC approached the band about a reunion.
Cummings and Bachman, busy with solo careers and their work together, were not interested.
Kale, who was on tour in Kenora, Ontario, as well as Peterson, Winter, and McDougall, responded.
 Cummings and Bachman gave Kale permission to use the Guess Who name for the one show.
Soon after, Kale found out that the name the Guess Who had never been registered; he promptly drove back to Winnipeg to register it, and maintains control of the band name to this day, sometimes performing without any other original members of the band.

Kale soon organized a permanent renewal of the Guess Who; the bassist was initially joined by returning members Kurt Winter (guitars) and Don McDougall (lead vocals and guitar), as well as new recruits David Inglis (lead guitars) and Vance Masters (drums).
Masters had been drummer in the Winnipeg group Brother with Winter and Bill Wallace.

A new studio album called Guess Who's Back was recorded at Roade Recording Studios in Winnipeg and released in Canada on the Aquarius label to minimal attention in July 1978.
 Winter dropped out shortly after the album's release, but the remaining quartet recorded a second Aquarius album, All This For a Song, retooling some of this album's songs for an American release in February 1979 on the Hilltak label, also titled All This For a Song.
Four of the eight tracks contained on Guess Who's Back also appear in the American version of All This For A Song, some in re-recorded form; the rest of the album's tracks were new.

Ralph Watts, who had been recording engineer on Guess Who's Back, joined the band on the road on guitar and keyboards during the second half of 1978 but left after being offered the house engineer position with Century 21 Recording Studios.

Kale left the band in 1979 to pursue other projects; McDougal, Masters, guitarist Bobby Bilan, bassist Brian Sellar, and keyboardist Jimmy Grabowski continued on touring as the Guess Who without him.

By 1981, Kale had taken back the Guess Who name and that year a completely new Guess Who line-up (Kale, former Crowbar drummer Sonnie Bernardi and guitarists Dale Russell and Mike McKenna) put out a new studio LP called Now And Not Then on the El Mocambo label, featuring new vocalist/keyboardist Brent DesJarlais.
 The album was released only in Canada and Germany (on Line Records).

At this point, the band was in demand to play shows, mostly in the United States, based on the popularity of their '60s and '70s hits featuring lead singer Burton Cummings.
After the reunion, Cummings resumed his solo work, Bachman took Peterson with him for a Bachman-Turner Overdrive reunion album and tour, and Kale once again resumed touring with various musicians under the Guess Who banner.
In the fall of 1983, Russell and Bernardi joined Kale, as well as singer Trevor Balicky and keyboardist Mike Hanford (from the '60s Winnipeg band Gettysbyrg Address).
In 1985 Balicky was succeeded by former Stilettos singer Bob Fuhr and then, in 1986, Kenny Carter.
Terry Read (formerly with the Lyme) came in briefly to sub for Hanford in 1986.

In 1987 a four-song cassette of new material from the Kale/Russell/Bernardi/Hanford/Carter line-up appeared, called Guess Who '87.

A new Guess Who studio album on Aquarius, Liberty (also issued as Lonely One on the US Intersound label), with Terry Hatty singing, was released in July 1995.
As with Guess Who 87, virtually no attention was paid to it in the mainstream press and the few reviews of the album were almost all overwhelmingly negative.

In 1997, former Coney Hatch singer and guitarist Carl Dixon joined the Guess Who as lead singer, a position he held for eight years in total; Kale stepped down from touring later in 1998, and bassist Ken "Spider" Sinnaeve  (ex-Streetheart) was called in as his successor.

A Jim Kale-led Guess Who continue to perform live dates on a regular basis.
Dixon continued as the group's lead singer through 2008, until he was severely injured in an automobile accident in Australia on April 14 of that year.
Dixon was briefly repla
In November 1977, CBC approached the band about a reunion. Cummings and Bachman, busy with solo careers and their work together, were not interested. Kale, who was on tour in Kenora, Ontario, as well as Peterson, Winter, and McDougall, responded.  Cummings and Bachman gave Kale permission to use the Guess Who name for the one show. Soon after, Kale found out that the name the Guess Who had never been registered; he promptly drove back to Winnipeg to register it, and maintains control of the band name to this day, sometimes performing without any other original members of the band.
Kale soon organized a permanent renewal of the Guess Who; the bassist was initially joined by returning members Kurt Winter (guitars) and Don McDougall (lead vocals and guitar), as well as new recruits David Inglis (lead guitars) and Vance Masters (drums). Masters had been drummer in the Winnipeg group Brother with Winter and Bill Wallace.
A new studio album called Guess Who's Back was recorded at Roade Recording Studios in Winnipeg and released in Canada on the Aquarius label to minimal attention in July 1978.  Winter dropped out shortly after the album's release, but the remaining quartet recorded a second Aquarius album, All This For a Song, retooling some of this album's songs for an American release in February 1979 on the Hilltak label, also titled All This For a Song. Four of the eight tracks contained on Guess Who's Back also appear in the American version of All This For A Song, some in re-recorded form; the rest of the album's tracks were new.
Ralph Watts, who had been recording engineer on Guess Who's Back, joined the band on the road on guitar and keyboards during the second half of 1978 but left after being offered the house engineer position with Century 21 Recording Studios.
Kale left the band in 1979 to pursue other projects; McDougal, Masters, guitarist Bobby Bilan, bassist Brian Sellar, and keyboardist Jimmy Grabowski continued on touring as the Guess Who without him.
By 1981, Kale had taken back the Guess Who name and that year a completely new Guess Who line-up (Kale, former Crowbar drummer Sonnie Bernardi and guitarists Dale Russell and Mike McKenna) put out a new studio LP called Now And Not Then on the El Mocambo label, featuring new vocalist/keyboardist Brent DesJarlais.  The album was released only in Canada and Germany (on Line Records).
At this point, the band was in demand to play shows, mostly in the United States, based on the popularity of their '60s and '70s hits featuring lead singer Burton Cummings. After the reunion, Cummings resumed his solo work, Bachman took Peterson with him for a Bachman-Turner Overdrive reunion album and tour, and Kale once again resumed touring with various musicians under the Guess Who banner. In the fall of 1983, Russell and Bernardi joined Kale, as well as singer Trevor Balicky and keyboardist Mike Hanford (from the '60s Winnipeg band Gettysbyrg Address). In 1985 Balicky was succeeded by former Stilettos singer Bob Fuhr and then, in 1986, Kenny Carter. Terry Read (formerly with the Lyme) came in briefly to sub for Hanford in 1986.
In 1987 a four-song cassette of new material from the Kale/Russell/Bernardi/Hanford/Carter line-up appeared, called Guess Who '87.
A new Guess Who studio album on Aquarius, Liberty (also issued as Lonely One on the US Intersound label), with Terry Hatty singing, was released in July 1995. As with Guess Who 87, virtually no attention was paid to it in the mainstream press and the few reviews of the album were almost all overwhelmingly negative.
In 1997, former Coney Hatch singer and guitarist Carl Dixon joined the Guess Who as lead singer, a position he held for eight years in total; Kale stepped down from touring later in 1998, and bassist Ken "Spider" Sinnaeve  (ex-Streetheart) was called in as his successor.
A Jim Kale-led Guess Who continue to perform live dates on a regular basis. Dixon continued as the group's lead singer through 2008, until he was severely injured in an automobile accident in Australia on April 14 of that year. Dixon was briefly repla
The Guess Who