Kevin Jonas & Danielle Deleasa Celebrate Engagement

July 4 2009, Published 4:00 a.m. ET

Kevin Jonas celebrated his recent engagement with his band and brothers, Nick and Joe.

On Friday evening, the Jonas' hit an Italian joint in Los Angeles with a party of 30, including family and friends, to toast the happy couple.

Click here for more photos of their intimate bash.

Kevin's parents made the formal announcement on the band's official website July 1, saying , ""Our hearts are filled with joy today and we are happy to share with you that our son Kevin has asked Danielle Deleasa for her hand in marriage. Her answer was yes and it is such a blessing that she will be joining our family."