Kevin, Nick and Joe Jonas were a couple of dapper dudes at the premiere of "Oceans" yesterday in Hollywood -- and Joe's GF Demi Lovato came along too.
![](https://images.toofab.com/image/cc/o/2010/04/18/cc2da4fd6ad65fcf963b00630e46be85_md.jpg)
Disneynature pledges to make a .20 donation for every movie ticket sold during the film's first week towards coral reef conservation.
The documentary opens Thursday, Earth Day.