'Grease: Live'... Vanessa Hudgens' Rizzo rules

Vanessa Hudgens as 'Rizzo' rehearses for GREASE: LIVE airing LIVE. (Getty Images)

Kether Donohue as 'Jan', Carly Rae Jepsen as 'Frenchy', Vanessa Hudgens as 'Rizzo' and Keke Palmer 'Marty'. (Getty Images)

(L-R) Carly Rae Jepsen as 'Frenchy', Keke Palmer as 'Marty', Kether Donohue as 'Jan', Vanessa Hudgens as 'Rizzo' and Boys II Men during the dress rehearsal for GREASE. (Getty Images)

Julianne Hough as 'Sandy' and Aaron Tveit as 'Danny Zuko rehearse for GREASE: LIVE airing LIVE Sunday. (Getty Images)

Aaron Tveit as 'Danny Zuko rehearses. (Getty Images) 

Julianne Hough as 'Sandy' and cast rehearse for GREASE. (Getty Images)

Julianne Hough as 'Sandy' and Aaron Tveit as 'Danny Zukorehearse. (Getty Images)

LIVE cast after a rehearsal for GREASE: LIVE airing LIVE. (Getty Images)