According to TMZ, the deal was signed several days ago, and Britney is beyond excited.
Britney and Nicki fans have been bombarding fan websites with comments about how great this collaboration is going to be. I'm not going to lie, knowing Nicki is the opening act makes me actually want to go to the Britney concert now.
The tour kicks off on June 17th in Sacramento, CA. Will you buy tickets for the show now that Nicki is a part of it?