Barry and Linda’s first son, Stephen, was born in 1973. Four years later, Ashley joined the family. In 1981, Travis was born and three years later, Barry and Linda welcomed Michael. Their youngest, and only daughter, Alexandra, was born in 1991.

The family lived in both Miami and London while the kids grew up but Barry told PEOPLE in 1989 that his kids also came on tour. “I can’t imagine what it is like to be a successful pop star without a family to support you,” he said.

In the 1980s, the Bee Gees was embroiled in record company battles that stopped them from releasing albums for eight years, but Barry said that this break was actually a good thing.

“They were the happiest years of our lives because we were raising our kids,” he said. “We were writing and producing songs for other people, which didn’t take up 100 percent of our time.”

Now, Barry is a solo artist who often collaborates with his sons Stephen and Ashley on new music.

Here is everything to know about Barry Gibb’s five children.

Stephen Gibb, 50

Linda and Barry welcomed their first son, Stephen, on Dec. 1, 1973. Their oldest took up the guitar at 13 and has been playing since, featuring in the metal bands 58 and Black Label Society.

In 2013, Stephen, who often goes by Steve, joined his father on his Mythology Tour through Australia and New Zealand. Samantha, the daughter of Maurice, performed with the band as well.

Stephen and his brother Ashley collaborated with their father in a big way in 2016, co-writing his album In the Now. Barry told  that he needed his sons’ energy to get back into music. “They give me that youth,” he said at the time of the album’s release. “They give me that fire.”

Stephen has been married to Gloria Levas since 2002, and they have two children: Angus and Nina Gibb.

Ashley Gibb, 46

Linda and Barry welcomed their son Ashley on Sept. 8, 1977. He didn’t set out to become a songwriter — most of his life has been focused on tennis — but thanks to his musical family, he’s found success in the industry.

In 2005, Barry was asked to collaborate on Barbra Streisand’s Guilty Pleasures album, the follow-up to the album Guilty on which the musicians collaborated. The father-of-five brought in both Stephen and Ashley to be co-writers on the new project. Although, according to Billboard, Ashley’s only prior songwriting experience was an amateur tune written for a girlfriend in the ’90s, Barry was impressed and liked working with his sons.

Barry released his second solo album called In the Now in 2016. All 15 of the album’s tracks were co-written with Stephen and Ashley.

“The album is my opinion of life,” Barry told Billboard in 2016. “My feelings and my journey with my brothers, and without my brothers, with my parents and without my parents, and with my own family, seeing my kids have their own kids.”

Ashley is married to Therese Gibb, and they have a son, Lucas Gibb.

Travis Gibb, 43

Barry and Linda welcomed their third son, Travis, on Jan. 10, 1981. He is a real estate agent in Miami, where he spent some time growing up.

Travis is married to Stacy Bash Gibb, and they have two children: Layla and Liam Gibb. On Instagram, the father-of-two occasionally shares snapshots from his life, like hiking the Appalachian Trail and celebrating his kids’ birthdays.

“I’m the happiest I’ve ever been in my life,” he said. “I’ve got seven grandchildren. I get to re-live watching Bugs Bunny and Daffy Duck. I spend a lot of hours being happy about what happened to us, because it may never have happened, any of those hits.”