A month after the 9/11 attacks, Ono organized the concert "Come Together: A Night for John Lennon's Words and Music" at Radio City Music Hall.
Hosted by the actor Kevin Spacey and featuring Lou Reed, Cyndi Lauper and Nelly Furtado, it raised money for September 11 relief efforts and aired on TNT and the WB.

During the Liverpool Biennial in 2004, Ono flooded the city with two images on banners, bags, stickers, postcards, flyers, posters and badges: one of a woman's naked breast, the other of the same model's vulva. (
During her stay in Lennon's city of birth, she said she was "astounded" by the city's renaissance.)
The piece, titled My Mummy Was Beautiful, was dedicated to Lennon's mother, Julia, who had died when he was a teenager.
According to Ono, the work was meant to be innocent, not shocking; she was attempting to replicate the experience of a baby looking up at its mother's body, those parts of the mother's body being a child's introduction to humanity.

Ono performed at the opening ceremony for the 2006 Winter Olympic Games in Turin, Italy, Like many of the other performers during the ceremony, she wore white to symbolize the snow of winter.
She read a free verse poem calling for world peace as an introduction to Peter Gabriel's performance of "Imagine".

On December 13, 2006, one of Ono's bodyguards was arrested after he was allegedly taped trying to extort $2 million from her.
The tapes revealed that he threatened to release private conversations and photographs.
His bail was revoked, and he pleaded not guilty to two counts of attempted grand larceny.
On February 16, 2007 a deal was reached where extortion charges were dropped, and he pleaded guilty to attempted grand larceny in the third degree, a felony, and was sentenced to the 60 days that he had already spent in jail.
After reading an unapologetic statement, he was released to immigration officials because he had also been found guilty of overstaying his business visa.

On June 26, 2007, Ono appeared on Larry King Live along with McCartney, Ringo Starr, and Olivia Harrison.
She headlined the Pitchfork Music Festival in Chicago on July 14, 2007, performing a full set that mixed music and performance art.
She sang "Mulberry", a song about her time in the countryside after the Japanese collapse in World War II for only the third time ever, with Thurston Moore: She had previously performed the song with John and with Sean.
On October 9 of that year, the Imagine Peace Tower on Viðey Island in Iceland, dedicated to peace and to Lennon, was turned on with her, Sean, Ringo, George Harrison's widow Olivia in attendance.

Ono returned to Liverpool for the 2008 Liverpool Biennial, where she unveiled Sky Ladders in the ruins of Church of St Luke (which was largely destroyed during World War II and now stands roofless as a memorial to those killed in the Liverpool Blitz).
Two years later, on March 31, 2009, she went to the inauguration of the exhibition "Imagine: The Peace Ballad of John & Yoko" to mark the 40th anniversary of the Lennon-Ono Bed-In at the Queen Elizabeth Hotel in Montreal, Canada, from May 26 to June 2, 1969. (
The hotel has been doing steady business with the room they stayed in for over 40 years.)
That year she became a grandmother when Emi was born to Kyoko.

In May 2009, she designed a T-shirt for the second Fashion Against AIDS campaign and collection of HIV/AIDS awareness, NGO Designers Against AIDS, and H&M, with the statement "Imagine Peace" depicted in 21 languages.
Ono appeared onstage at Microsoft's June 1, 2009, E3 Expo press conference with Olivia Harrison, Paul McCartney, and Ringo Starr to promote the Beatles: Rock Band video game, which was universally praised by critics.
Ono appeared on the Basement Jaxx album Scars, featuring on the single "Day of the Sunflowers (We March On)".
A month after the 9/11 attacks, Ono organized the concert "Come Together: A Night for John Lennon's Words and Music" at Radio City Music Hall. Hosted by the actor Kevin Spacey and featuring Lou Reed, Cyndi Lauper and Nelly Furtado, it raised money for September 11 relief efforts and aired on TNT and the WB.
During the Liverpool Biennial in 2004, Ono flooded the city with two images on banners, bags, stickers, postcards, flyers, posters and badges: one of a woman's naked breast, the other of the same model's vulva. (During her stay in Lennon's city of birth, she said she was "astounded" by the city's renaissance.) The piece, titled My Mummy Was Beautiful, was dedicated to Lennon's mother, Julia, who had died when he was a teenager. According to Ono, the work was meant to be innocent, not shocking; she was attempting to replicate the experience of a baby looking up at its mother's body, those parts of the mother's body being a child's introduction to humanity.
Ono performed at the opening ceremony for the 2006 Winter Olympic Games in Turin, Italy, Like many of the other performers during the ceremony, she wore white to symbolize the snow of winter. She read a free verse poem calling for world peace as an introduction to Peter Gabriel's performance of "Imagine".
On December 13, 2006, one of Ono's bodyguards was arrested after he was allegedly taped trying to extort $2 million from her. The tapes revealed that he threatened to release private conversations and photographs. His bail was revoked, and he pleaded not guilty to two counts of attempted grand larceny. On February 16, 2007 a deal was reached where extortion charges were dropped, and he pleaded guilty to attempted grand larceny in the third degree, a felony, and was sentenced to the 60 days that he had already spent in jail. After reading an unapologetic statement, he was released to immigration officials because he had also been found guilty of overstaying his business visa.
On June 26, 2007, Ono appeared on Larry King Live along with McCartney, Ringo Starr, and Olivia Harrison. She headlined the Pitchfork Music Festival in Chicago on July 14, 2007, performing a full set that mixed music and performance art. She sang "Mulberry", a song about her time in the countryside after the Japanese collapse in World War II for only the third time ever, with Thurston Moore: She had previously performed the song with John and with Sean. On October 9 of that year, the Imagine Peace Tower on Viðey Island in Iceland, dedicated to peace and to Lennon, was turned on with her, Sean, Ringo, George Harrison's widow Olivia in attendance.
Ono returned to Liverpool for the 2008 Liverpool Biennial, where she unveiled Sky Ladders in the ruins of Church of St Luke (which was largely destroyed during World War II and now stands roofless as a memorial to those killed in the Liverpool Blitz). Two years later, on March 31, 2009, she went to the inauguration of the exhibition "Imagine: The Peace Ballad of John & Yoko" to mark the 40th anniversary of the Lennon-Ono Bed-In at the Queen Elizabeth Hotel in Montreal, Canada, from May 26 to June 2, 1969. (The hotel has been doing steady business with the room they stayed in for over 40 years.) That year she became a grandmother when Emi was born to Kyoko.
In May 2009, she designed a T-shirt for the second Fashion Against AIDS campaign and collection of HIV/AIDS awareness, NGO Designers Against AIDS, and H&M, with the statement "Imagine Peace" depicted in 21 languages. Ono appeared onstage at Microsoft's June 1, 2009, E3 Expo press conference with Olivia Harrison, Paul McCartney, and Ringo Starr to promote the Beatles: Rock Band video game, which was universally praised by critics. Ono appeared on the Basement Jaxx album Scars, featuring on the single "Day of the Sunflowers (We March On)".
Yoko Ono