Christina To Appear At Adam Levine's Show At the Hollywood Bowl?

Adam Levine teased his fans with this mysterious tweet. Could one of the 'seriously special guests' be Christina Aguilera? Who, let's not forget, features on his new song 'Moves Like Jagger' and helped get to go #1 in 4 countries.

Fans of the song would love another 'Moves Like Jagger' performance. One is not enough!