Conversation so far:
What is Battlefield?
Her second studio album.
What were the singles?
"S.O.S.
(Let the Music Play)".
Are there any others?
The third single from Battlefield, "Don't Let It Go to Your Head".
Was this album successful?
In the United States, Battlefield debuted at number seven on the Billboard 200.
Was there a tour?
In May 2010, Sparks embarked on her first headlining tour in the United States.

Question: Did she tour with anyone else?
Self-contained rewrite: Besides first headlining tour in the United States, did Jordin Sparks tour with anyone else?