Beyoncé, Efron team up for Oscars?

Beyoncé, Zac Efron and Hugh Jackman will reportedly perform a musical extravaganza together at this year's Oscars.

According to E! News, the trio will be joined on stage by Efron's High School Musical co-star Vanessa Hudgens and Mamma Mia! actors Dominic Cooper and Amanda Seyfried.

Several unnamed sources have revealed that Beyoncé and Jackman, who is hosting the ceremony, have already begun rehearsing their parts in New York, while the entire group will practice together in Los Angeles this week.

Jackman's Australia director Baz Luhrman, who previously helmed Moulin Rouge!, is reported to be staging the number.

However, the insiders admitted that the lineup is subject to change because of unresolved scheduling conflicts.

The 81st annual Academy Awards will telecast live on ABC from Hollywood's Kodak Theatre.