Young Money
Roger Whittaker
Roger Miller
"Me and Bobby McGee"??? was a hit for Roger Miller in 1969 and for Janis Joplin in 1971.
Boen in 1982, so 30
Roger Troutman - "Hurry Up"
Technically that song is a rap song so, no one sings. The rappers are Nicki Minaj, Tyga, and Lil Wayne; they're part of Young Money.
Cilantro by Dan narravo
While Roger usually only sings, footage I've seen of The Who shows he can play harmonica, tambourine, ukelele, and guitar.
Although Roger Waters wrote the song, it is sung by David Gilmour.
Roger Miller : whistle stop
In the episode "A.T. The Abusive Terrestrial", Roger feels neglected by Steve and sings a song about his feelings of neglect. During this song, it shows different points in Steve and Roger's relationship, one of them being Steve getting Roger for his tenth birthday as a gift from Stan.
Sings sober music ???I'm guessing you're referring to his "When I was His Alien" song from A.T. the Abusive Terrestrial