Does Judy Greer Sing in Archer?

Judy Greer provides the singing voice of Cheryl Tunt but not for Cheryl's alter ego Cherlene, that is provided by Jessy Lynn Martens.

Which season of Archer is outlaw country?

Archer (season 5)

Is Cheryl Archer or Carol?

The name Cheryl means "darling" in French. Cheryl has gone by the names Carol, Cherlene,Cristal and Carina. Initially, she started going by the name Carol because Sterling Archer mistakenly calls her that. Later, after her frequent name changes, she said that she did not know what her name was when being asked.