Justin Timberlake was a fan of the ruling that made same-sex marriage legal in these here United States.
But, he didn't just talk about his happiness.
He showed it by performing at a same-sex wedding between two of his wife's friends, Dana Panzer and Amy Wicker.
At the wedding, JT performed a version of his song "Señorita," and he cleverly tweaked the song a bit to reflect the situation.
Basically, Timberlake is the man. And if this whole pop star thing doesn't work out for him, he always has a backup career as a wedding singer.
Check out video of the performance below.