Singer-songwriter Skylar Grey will debut material from her upcoming solo album at 2011 Lollapalooza in Chicago in August.

Grey was among the more than 100 acts announced as performers for the annual rock festival. The 25-year-old is still working on her upcoming solo album, but she's been earning a following thanks to her high-profile collaborations with other artists.

Grey held her own with Dr. Dre and Eminem during their Grammy performance of 'I Need a Doctor' and stole the spotlight during Diddy-Dirty Money's 'Coming Home' performance on 'American Idol.'

In addition to her solo performance, it's possible Grey could make an appearance during Eminem's headlining set. She did co-write 'Love the Way You Lie,' after all, so if Rihanna isn't available for a guest spot, perhaps Grey will fill in.

Lollapalooza takes place from Aug. 5-7 in Chicago's Grant Park. The exact date and time of Grey's performance will be revealed in the coming weeks.

Watch Skylar Grey Perform With Diddy-Dirty Money on 'American Idol'

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