On TV's "Friends", what song did Rachel sing at Barry's wedding?

On TV’s “Friends,” Rachel sang “Copacabana” at Barry’s wedding.

The moment occurs in “The One with Barry and Mindy’s Wedding,” the season-two finale. Rachel attends the wedding of her former fiancé, Barry Farber, and her former friend Mindy Hunter, serving as Mindy’s maid of honor despite the awkward history.

After Ross gives an embarrassing speech, Rachel takes the microphone and launches into “Copacabana,” turning the reception into an impromptu singalong. Ross helps her keep the performance going, and the scene becomes one of Rachel’s most memorable comic moments.

The song is formally titled “Copacabana (At the Copa)” and was recorded most famously by Barry Manilow. A common mix-up is confusing it with another Friends musical moment, such as Phoebe’s “Smelly Cat” or Ross and Rachel’s later wedding storyline. Barry’s wedding here is to Mindy, not Rachel; Rachel had already ended her engagement to Barry before the series began.