Happy Birthday Joe! – Inside Joe Jonas’ Vegas Birthday Bash Weekend – Everyone Had An ‘Amazing Time’

Joe Jonas spent the weekend celebrating his 25th birthday in Las Vegas and RadarOnline.com has the exclusive inside details from a source who was with Jonas for the big event.

“Joe has been back on track lately and he showed it this weekend at his birthday celebration,” a source close to Jonas tells Radar. “He resembled the Joe that we all know and love. It was a great to see.”

Jonas was joined by both of his brothers, Nick and Kevin, as well as Kevin’s on-again-off-again girlfriend, Olivia Culpo.

The group started off the celebration on Friday night with a dinner at CRUSH at the MGM Grand, followed by David Copperfield’s Magic Show, according to reports.

“The big celebration was on Saturday at Beacher’s Mad House,” the source tells Radar. “Everyone was there and had a really amazing time. Joe was partying, of course, because it was his birthday. But he looked great and was very tame, really enjoying his time and genuinely looking happy and himself.”

The one person notably missing from the celebration was Blanda Eggenschwiler, with whom Jonas recently ended a stormy relationship.

“Breaking it off with Blanda was the best thing Joe’s done in a long, long time. He has really been pulling it together since the split and taking responsibility for his actions. He was so happy this weekend and we are all so relieved that she is gone,” adds the source.