Tripp Manes is portrayed by Jason Behr who played Max Evans in the original Roswell series.
When Rosa asks Liz, "Hey, did you know Jimmy from Degrassi became a big time rapper?" she was talking about Aubrey "Drake" Graham, who portrayed the character Jimmy Brooks in Canada's Degrassi: The Next Generation.
The episode is named after the song "Ladies And Gentleman We Are Floating In Space" by Spiritualized, released in 1997.