The Jonas Brothers sneaking thru the backdoor at the "Microsoft Windows Presents Musicology 101 to Benefit VH1 Save The Music Foundation" at Universal Studios on Monday night. The boys flew to LA from NYC just to have a meeting with Common regarding an upcoming collaboration. The "Disney" stars didn't want their photo taken and eventually came out of the green room to have a sneak peak at the rapper's performance. However the brothers were promptly escorted out by their bodyguards once the excited crowd heard word that they were there.