What is "alternative rock" anywho? 

William Shatner - Seeking Major Tom
"Major Tom (Coming Home)" (Peter Schilling)
"Space Oddity" (David Bowie)
"In a Little While" (Bono, Adam Clayton, The Edge, Larry Mullen Jr.)
"Space Cowboy" (Steve Miller, Ben Sidran)
"Space Truckin'" (Ritchie Blackmore, Ian Gillan, Roger Glover, Jon Lord, Ian Paice)
"Rocket Man" (Elton John, Bernie Taupin) (previously performed by Shatner in 1978)
"She Blinded Me with Science" (Thomas Dolby, Jo Kerr)
"Walking on the Moon" (Sting)
"Spirit in the Sky" (Norman Greenbaum)
"Bohemian Rhapsody" (Freddie Mercury)
"Silver Machine" (Robert Calvert, Dave Brock)
"Mrs. Major Tom" (Kirby Ian Andersen, Sheryl Crow)
"Empty Glass" (The Tea Party)
"Lost in the Stars" (Kurt Weill, Maxwell Anderson)
"Learning to Fly" (David Gilmour, Anthony Moore, Bob Ezrin, Jon Carin)
"Mr. Spaceman" (Roger McGuinn)
"Twilight Zone" (George Kooymans)
"Struggle" (William Shatner, Adam Hamilton)
"Iron Man" (Tony Iommi, Ozzy Osbourne, Geezer Butler, Bill Ward)
"Planet Earth" (Simon Le Bon, Nick Rhodes, Nigel John Taylor, Roger Andrew Taylor, Andy Taylor)