Grande made her acting debut in the 2008 Broadway production, which has music and lyrics by Jason Robert Brown and book by Dan Elish and Robert Horn.

The songs "Brand New You" and "A Little More Homework," which both feature Grande, are now available together for the first time on iTunes here. For other theatrical recordings, visit the Playbill Store.

The full original Broadway cast recording of 13 and the London cast recording are available from Ghostlight Records. Since its Broadway premiere, the show has had over 1,000 productions around the world and is being developed as a movie musical by CBS Films.

13, according to press notes, "is a grown-up story about growing up! When his parents get divorced and he's forced to move from New York to a small town in Indiana, Evan Goldman just wants to make friends and survive the school year: easier said than done. The star quarterback is threatening to ruin his life and his only friend, Patrice, won't talk to him. The school freak sees an opportunity for blackmail and someone is spreading the nastiest rumors. With an unforgettable rock score from composer Jason Robert Brown, the show is a hilarious, high-energy musical for all ages about discovering that cool is where you find it, and sometimes where you least expect it."

13 premiered at The Mark Taper Forum in Los Angeles, CA, in 2007 before opening on Broadway in 2008.

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Watch the new lyric video of "Brand New You":