Samuel Johnson, better known by his stage name Samwell,[1] is an American entertainer whose 2007 video "What What (In the Butt)" made him an Internet celebrity.

The song was used extensively in the South Park season 12 episode "Canada on Strike", which featured a re-creation of the What What video.

In April 2008, Samwell appeared on the BBC television show Lily Allen and Friends for an interview and performed a live version of "What What (In the Butt)" with choreographed dancers.

The segment told the story of how the "What What" video was created, followed by an acoustic duet version of the song by Samwell and Josh Homme, lead singer for Queens Of The Stone Age and Them Crooked Vultures.

[6] In a June 2 interview, host Daniel Tosh called Samwell one of the best guests he's had on the show, saying, "I'll tell you who I loved the 'What What In The Butt' guy.