Virgin Australia invited 100 special guests to help celebrate the 100th Next-Generation 737 to join the airline’s fleet.

One hundred Starlight Foundation children and their families flew on the inaugural passenger flight Monday. The Starlight Foundation helps brighten the lives of seriously ill and hospitalized children, and their families, throughout Australia.

The flight “gives many of these children the opportunity to experience a joy flight for the first time and see Sydney’s skyline from the greatest of heights,” said Danielle Keighery, Group Executive of Corporate Communications at Virgin Australia. “We couldn’t think of a better way to utilize the arrival of our 100th Boeing aircraft.”

The unique flight experience included a guest appearance from hit boy band The Collective, who did a surprise performance at 30,000 feet.

The airplane, a 737-800, departed from Boeing Field in Seattle last week with a decal marking the milestone delivery.

”It’s very special when an airline takes its 100th airplane,” said Dinesh Keskar, senior vice president Asia Pacific and India Sales, Commercial Airplanes. “I’d like to congratulate Virgin Australia on this milestone delivery and the airline’s tremendous success.”

Virgin Australia was recently recognized as the “Domestic Airline of the Year” in Australia at the Roy Morgan Customer Satisfaction awards, which are based on the world’s largest ongoing single source survey.

The airline’s latest 737-800 is outfitted with a modern look featuring bright colors and Virgin’s signature purple mood lighting made possible by the Boeing Sky Interior.