Cook auditioned for CMT's open female host position in 2001 and after several call backs landed the job.
She began as the host of CMTs TRL spin-off Most Wanted Live (MWL).

Since 2001 Cook has hosted "CMA Live from the Red Carpet," "ACM Live From the Red Carpet," "CMT Live from the Purple Carpet," "CMT MWL Star," "CMT Star Pads," "CMT Top 20 Countdown," "The Grand Ole Opry Live," "CMT Big 40, The Notorious 90's) and "Top 100 Countdown."

She has also hosted the following CMT Specials: 
"Dale: The Movie," "Charlotte's Web: The Movie," "Elizabethtown: The Movie," "Larry The Cable Guy Special," "Toby Keith Special," "Jeff Foxworthy Special," "Shania in Switzerland," "George Strait Special," "Shania in London," and "Tim McGraw, Making the Video."

In addition to CMT hosting spots Cook has also hosted "Miss America Live From Las Vegas," "Martina McBride: Timeless Live," "Lee Ann Womack: There's More," "Kenny Chesney: Be As You Are," "LeAnn Rimes Live," "Alison Krauss and Union Station Live," "Travis Tritt: Strong Enough to Be," "Toby Keith, Live, Uncut and Unleashed," "Farm Aid" and "Country Freedom Concert."

As a correspondent Cook has appeared on CNN's Anderson Cooper 360, MSNBC, and CNBC.

In 2008, Cook became the correspondent (co-host) of the NBC television series Nashville Star.

In 2009, Cook hosted a report of "An Evening of Country Music" at the White House.

She is currently the co-host of CMT's Hot 20 Countdown with Cody Alan.
Cook auditioned for CMT's open female host position in 2001 and after several call backs landed the job. She began as the host of CMTs TRL spin-off Most Wanted Live (MWL).
Since 2001 Cook has hosted "CMA Live from the Red Carpet," "ACM Live From the Red Carpet," "CMT Live from the Purple Carpet," "CMT MWL Star," "CMT Star Pads," "CMT Top 20 Countdown," "The Grand Ole Opry Live," "CMT Big 40, The Notorious 90's) and "Top 100 Countdown."
She has also hosted the following CMT Specials: 
"Dale: The Movie," "Charlotte's Web: The Movie," "Elizabethtown: The Movie," "Larry The Cable Guy Special," "Toby Keith Special," "Jeff Foxworthy Special," "Shania in Switzerland," "George Strait Special," "Shania in London," and "Tim McGraw, Making the Video."
In addition to CMT hosting spots Cook has also hosted "Miss America Live From Las Vegas," "Martina McBride: Timeless Live," "Lee Ann Womack: There's More," "Kenny Chesney: Be As You Are," "LeAnn Rimes Live," "Alison Krauss and Union Station Live," "Travis Tritt: Strong Enough to Be," "Toby Keith, Live, Uncut and Unleashed," "Farm Aid" and "Country Freedom Concert."
As a correspondent Cook has appeared on CNN's Anderson Cooper 360, MSNBC, and CNBC.
In 2008, Cook became the correspondent (co-host) of the NBC television series Nashville Star.
In 2009, Cook hosted a report of "An Evening of Country Music" at the White House.
She is currently the co-host of CMT's Hot 20 Countdown with Cody Alan.
Katie Cook