Beyonce’s “Check On It” featuring Slim Thug retains its No. 1 spot on the Billboard Hot 100 for a second week, but the star this week is the “High School Musical” soundtrack, which spawns several history-making chart debuts. Zac Efron and Vanessa Anne Hudgens’ “Breaking Free” makes Hot 100 history with the biggest one-week jump of all time, rocketing 86-4. The song garnered no airplay; its 82-point rise is purely the result of digital downloads. Click Here for more!

- Billboard