The Recording Academy's Beach Boys tribute concert was filmed earlier this week, and featured a previously unannounced collaboration by The Pretty Reckless' Taylor Momsen and The Struts' Luke Spiller.

After footage of their joint performance surfaced online following the taping, Momsen confirmed it in an Instagram post reading, "I guess the cat's out of the bag."

"It was an honor to perform at the Grammy's tribute to @thebeachboys with my new found friend @lukestruts amongst so many great artists," Momsen wrote. "It was a blast."

The post also includes photos of Momsen and Spiller together alongside Beach Boys member Mike Love.

The concert, dubbed A Grammy Salute to The Beach Boys, will air at a later date on CBS and stream on Paramount+. The announced performers include Fall Out Boy, Weezer, Beck, St. Vincent, Mumford & Sons and My Morning Jacket.

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