They may have teamed up on this summer’s inescapable hit, “On The Floor”… But Jennifer Lopez and Pitbull now find themselves facing off against each other.

J.Lo and Mr. 305 have been nominated for an ARIA Award in the Most Popular International Artist category.

But the 42-year-old Puerto Rican-American pop superstar and 30-year-old Cuban-American rapper face some tough competition in a category where public voting decides the winner. They’re up against several international superstars, including British songstress Adele, Lady Gaga and Rihanna.

The ARIA (Australian Record Industry Association) is the Australian version of the Grammys.

The 2011 ARIA Awards will take place in Sydney on Sunday, November 27, 2011.

Meanwhile Lopez and Pitbull will face off against each other in the Favorite Artist in the Latin Music category at next month’s American Music Awards.