Former UFC heavyweight champion Junior dos Santos made some history Saturday night at UFC Fight Night 146.

But dos Santos was more pleased that his performance led him to be able to sing “Happy Birthday” to his child.

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After finishing off Derrick Lewis in the main event for his 10th career Octagon knockout, dos Santos and the Wichita, Kansas crowd joined voices together to sing.

Check out FightLine for a complete recap from the event.