Fox's take on the live musical, "Grease: Live," aired Sunday night and was an Internet hit.
The adaptation of the musical (and 1978 John Travolta film) featured Aaron Tveit and Julianne Hough in the lead roles of Danny and Sandy, as well as Vanessa Hudgens, Keke Palmer, Carly Rae Jepsen, and Carlos PenaVega.
But many fans were most excited to see cameos from the film's original Frenchy and Doody (Didi Conn and Barry Pearl) and none other than Boyz II Men.
Here are the cameos featured in "Grease: Live":
Boyz II Men
The 1990s R&B group brought their harmonizing talents to the stage as the Teen Angels, singing "Beauty School Dropout" to Frenchy (Carly Rae Jepsen). The song was originally sung by Frankie Avalon in the film version.
The group also showed off some synchronized dance moves.
Didi Conn
Fans of the film were thrilled to see the film's original Frenchy make a cameo appearance as a waitress at the diner.
Barry Pearl
Pearl, who originally played Doody in the film, made a cameo appearance as Mr. Weaver, a producer for Vince Fontaine's "National Bandstand."
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