Taylor swooped in to perform at the Hard Rock Stadium, with the likes of retired NFL star Tom Brady, tennis great Serena Williams and "Today" cohosts Hoda Kotb and Savannah Guthrie all enjoying the show.

Just before the gig, Tom posted a photo with his 2 sons, Jack and Benjamin — and the happy trio was all smiles. Tom wrote in the caption, "Boys night at the Eras Tour."

Hoda, Savannah and their "Today" colleague, Jenna Bush Hager, were also featured in a different IG pic having a blast inside the arena.

Singing sensation Miley Cyrus was spotted shakin' it off in Miami ... as was Tik Toker Alix Earle and Miami Dolphins wide receiver Braxton Berrios.

Other bold-faced names in the packed crowd included Jason Kelce, brother of Taylor's BF Travis Kelce, and their mom, Donna.

As expected, Travis was a no-show, because he's doing his 9 to 5 ... getting ready for Sunday's Kansas Chiefs game against the San Francisco 49ers.

As for Taylor's performance ... she didn't disappoint her gazillion fans, taking the stage in an orange bodysuit around 8 PM, and opening with her hit "Cruel Summer." She then told all the "Swifties" in the audience, "Miami, we are so back!"

Despite some South Florida rain, Taylor powered through, making several outfit changes ... as she always does. She even debuted a new black bodysuit with gold snakes during her song, "... Ready For it?"

And fans received a nice treat when Florence Welch strolled onstage to duet with Taylor on their song, "Florida."