E! has more interesting tidbits about the Oscar telecast:
Several sources say that the Aussie hunk will be joined on stage by Beyonc√©, High School Musical stars and real-life couple Zac Efron and Vanessa Hudgens and Mamma Mia!’s Amanda Seyfried. Dominic Cooper, Seyfried’s costar and rumored boyfriend, will also likely participate, but I’m told scheduling conflicts still have to be resolved to make it work.
One source tells me that Jackman and Beyonc√© have been rehearsing at the Baryshnikov Arts Center in New York City.