February 10, 2012 4:39pm PT by Lesley Goldberg
'Glee' Preview: Samuel Larsen, Jeff Goldblum, Brian Stokes Mitchell Make Their Debut (Video)
Nearly three years in the making, but Rachel's gay dads will finally surface on the Fox hit in Tuesday's episode, which also marks the debut of The Glee Project co-winner Samuel Larsen.
In videos released Friday, Larsen's Joe Hart covers Gym Class Heroes' "Stereo Hearts" in a performance where he's joined by Sam (Chord Overstreet) and Mercedes (Amber Riley) that captivates nearly all of McKinley High -- including Rachel and apparently the school's choir.
The Valentine's Day episode, fittingly titled "Heart," will also feature Jeff Goldblum and Brian Stokes Mitchell's debut as Rachel's (Lea Michele) gay dads Hiram and LeRoy, respectively, and they pop in to surprise their newly engaged daughter.
Check out the clips below and hit the comments with your thoughts on Larsen's debut and your theories on why he's apparently singing to Rachel. Glee airs Tuesdays at 8 p.m. on Fox.