The JoBros Join Baseball Benefit Auction

Kevin, Joe and Nick Jonas have used their star status to help benefit Little League Baseball while putting their signatures on a baseball that's up for auction!

OK! GALLERY: THE JONAS BROTHERS AT BAT TO X THE TXT

Baseballs decorated by Little Leaguers and signed by the stars are on display as part of the Subways Baseball DeSIGNS Tour with the total proceeds benefiting the Little League Urban Initiative.

More than 40 baseballs are on display signed by celebrities and professional athletes including Backstreet Boys, Good Charlotte, Boys Like Girls, Brittany Snow and Zac Levi.

Even Twilight star Ashley Greene put her signature in silver on one of the 40 baseballs!

OK! GALLERY: THE FAN FRIENDLY JONAS BROTHERS ARE ALL SMILES

The online charity auction ends Sunday Aug. 29, so head over to SubwayKids.com and the Official SUBWAY® Facebook page to play ball!