Celebrity Parents Kevin Jonas' Daughter Alena Looks All Grown Up in Birthday Photo: '9 Years Old Doesn't Feel Real' The singer paid tribute to his "little bird" older daughter in a sweet Instagram post on Thursday By Wendy Geller Published on February 2, 2023 10:04 PM Share Tweet Pin Email Photo: Denise Truscello/Getty Kevin Jonas can't believe how fast his daughter is growing! The singer's oldest child, daughter Alena, turned 9 on Thursday, spurring the proud dad, 35, to post a tribute on Instagram expressing his disbelief at how quickly time is moving. "Happy birthday Alena," he captioned a shot of her smiling in sunglasses and a tiara at Disneyland in California. "Nine years old doesn't feel real. We love you Little Bird." Kevin Jonas Dresses Up as Pokémon Trainer Alongside Daughter Valentina as Pikachu for Halloween Nick Jonas, 30, took the opportunity to chime in, adding his well-wishes for his niece: "Happy birthday Alena!" This marks the second time in just days Kevin has shouted out his kids. On Monday, the Jonas Brothers were honored with a star on the Hollywood Walk of Fame during a special ceremony. Each of the three musicians were given separate time to pay tribute to those closest to them, and in his speech, Kevin made sure to shout out Alena and younger sister Valentina, 6, who were both on hand for the milestone occasion. RELATED VIDEO: Jonas Brothers Express Gratitude to Their Families During Walk of Fame Speeches "Alena, Valentina, this is a pretty cool moment, don't you think?" he addressed the two girls. "It's pretty cool, but you two are my brightest stars. I love you, thank you," he said. Mom to both Alena and Valentina is Danielle Jonas, whom Kevin first met in 2007 while on vacation in the Bahamas and later got married in 2009. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. In June, Kevin opened up to PEOPLE about being present in his daughters' lives despite juggling his music career with his real estate development company, JonasWerner, and other business ventures. "I just want to be able to be present as much as possible and available as I can be even in the midst of being pulled in so many different directions with the challenges of our lifestyle," he shared. "It's all about being there when you can."