Last night, Mr. and Mrs. Jonas announced that eldest son Kevin Jonas and longtime girlfriend Danielle Deleasa were engaged.

Seems that the 21-year-old musician pulled out all the stops for his bride-to-be. MTV reports that Kevin helped Jacob & Co., designer Jacob the Jeweler design Danielle’s engagement ring!

The diamond ring is a 3-carat solitaire cushion-cut diamond, surrounded by 210 round brilliant-cut pave diamonds. WOWZA!

WEDDING BELLS!

Kevin Jonas and longtime girlfriend Danielle Deleasa are engaged!

Jonas mom and pop Kevin Sr and Denise posted the news on the boys MySpace, 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. Kevin and Danielle have not yet set a date. Family is very dear to us and we hope we have raised Kevin to be a wonderful man and husband. Please join us in our families celebration and in congratulating Kevin and Danielle. Thank you for all of your support.”

Congrats, Kevin and Danielle!

The Jonas Brothers wave to their fans outside the day after their concert at General Motors Place on Wednesday morning (July 1) in Vancouver, Canada.

JJJ reader Sandy writes to us, “I saw the first show in Vancouver — it started late but it was sooo goood! I went to go see them the next day at the gates they came out for a min and waved and then we were told they were coming back out. About 50 of us [fans] waited for a half and hour and then we were told they weren’t coming. But we got to see Jordin Sparks; she’s so cute she came up to us with her puppy.”

Jenna adds, “We waited for the Jonas Brothers to arrive at General Motors Place. When they finally got there, they got out of there car to wave at people, but were then rushed into the building. My friend and I saw them putting up metal barrier gates, so we went over there. The security told us there wouldn’t be anyone famous coming, but about an hour later Jordin Sparks came and walked into the building. The security told us the boys were not going to be coming out but if her security guards came back out that meant the boys would be coming out. About two hours later, the Jonas Brothers came out. I held Joe’s hand for about 30 seconds, and they signed my friends CD!”

The JoBros will burn up Rexall Place in Edmonton, Alberta TOMORROW night @ 7PM.

10+ pics inside… More Here! »

Nick Jonas sits tall as he testifies during a Senate hearing on Wednesday afternoon (June 24) in Washington, D.C.

The 16-year-old musician spoke on behalf of the Juvenile Diabetes Research Foundation on the need for federal funding for Type 1 Diabetes research.

Nick was joined by TV veteran Mary Tyler Moore and boxer Sugar Ray Leonard.

Check out Nick’s speech below.

More Here! »

Donning a leather cap, Joe Jonas stands front and center as he and his brothers, Nick and Kevin cover Rolling Stone magazine.

This will mark the second time the JoBros have covered the music magazine. The musical trio will rock out the Pepsi Center in Denver, Colorado tomorrow night (June 24).

Take a peek inside their world concert tour and be sure to check out RollingStone.com/Jonas soon for more behind-the-scenes pics and videos!

Clad in plaid shorts, Nick Jonas and pop Paul make their way into a car after landing at Dulle airport on Tuesday morning (June 23) in Chantilly, Virginia.

According to the Washington Examiner, the 16-year-old musician was spotted at Barney’s CO-OP before grabbing some pizza at Numero Uno on M Street this afternoon.

Later in the day, Nick will be meeting with Sen. Frank Lautenberg, where he is set to discuss juvenile diabetes and the organization he started that raises money for the disease. Nick will address the Senate Committee on Homeland Security and Governmental Affairs on the same issue tomorrow (June 24).

The Jonas Brothers grab onto their mics as they rehearse during their sound check for the 2009 MuchMusic Video Awards in Toronto, Canada on Sunday afternoon (June 21).

The musical trio — Nick, Joe and Kevin — are hosting and performed “Burnin’ Up” and “Love Bug” during tonight’s ceremony.

The JoBros just tweeted, “Just finished co hosting the Much Music Video Awards. Thank you to all of our amazing fans for voting us Ur Fave International Video!”

10+ pics inside… More Here! »

Check out the awesome duet of Miley Cyrus singing with maybe-boyfriend Nick Jonas during the Jonas Brothers concert on Saturday night (June 20) at Cowboy Stadium in Dallas, TX.

Standin’ out in the rain,
Knowin’ that it’s really over.
Please don’t leave me alone.

FYI: Nicole Anderson, aka Macy Misa on JONAS, introduced the JoBros on stage!

WHAT DO YOU THINK of the Niley performance — HOT or NOT?