Elton John rocked Glastonbury on Sunday evening, headlining the world-famous music festival in what he said may be his last-ever UK show.
Fans and famous names gathered to watch the Rocket Man singer play the iconic Pyramid stage as he belted out hits like Tiny Dancer and I'm Still Standing.
Elton, 76, also had two very special fans there to support him on the huge occasion… his sons Zachary, 12, and Elijah, 10, who can be seen singing along in the video below!
Yes, Elton's two boys were spotted enjoying the concert in a VIP area with their dad David Furnish – Elton's Canadian husband of nine years - and they looked to be having a ball.
Zachary and Elijah were pictured standing behind a barrier with David and the boys were dressed in casual attire: T-shirts, hoodies and one wearing a baseball cap.
Also standing beside the trio was Formula One racing driver Lewis Hamilton, plus artist Sam Taylor-Johnson and her actor husband Aaron Taylor-Johnson, so it was quite the exclusive crowd.
We bet Elton's boys loved watching their star dad perform his most-loved songs to the 200,000 plus crowd. No doubt the brothers have heard their father's hits countless times at home and know all the words. We wonder what their favourite is?
We don't often see Elton and David out and about with their sons as they like to maintain a degree of privacy for their sons, so it was wonderful to see the siblings cheering their dad on.
Elton John and David Furnish's surrogacy journey
Elton and husband David officially wed in 2014, nine years after their civil partnership ceremony in 2005.
The couple welcomed Zachary via a surrogate on Christmas Day in 2010, and three years later they used the same surrogate to welcome their second son Elijah in 2013.
The singer said at the time in a statement: "Both of us have longed to have children, but the reality that we now have two sons is almost unbelievable."
Elton and David chose to keep the name of their surrogate secret from the public to protect her identity.
Elton John's love for his sons
Proud dad Elton absolutely loves being a dad and previously told The Mirror: "Having children changed everything about my life. I've learned that the simplest things in life, like having a minute with them, are worth more than any painting, any photograph, any house or hit record."
He added: "Before we had the children we just had our lives and we would spend money because we didn't have anything else to focus on. We have really toned things down because we have enough stuff. There is nothing else we need."
Elton also offered a rare insight into fatherhood back in 2016, when he admitted that being a dad is his number one priority.
"That was the greatest decision I've made — well — we've made, in the last six years, is to have those boys," the legendary singer revealed during an appearance on the Today show. "They're our primary concern. They're the things that come first and foremost."
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He added: "[Zachary] is very proud of his daddy, but he's more interested in 'Hotline Bling' by Drake or 'Uptown Funk,'. They sing 'Rocket Man.' They sing 'Benny and the Jets.' ... They know who I am. They know what I do, but they're more interested, to be honest with you, in their toys. And I'm fine with that. That's good."