Travis Kelce throws surprise Eras-themed end of tour party for Taylor Swift

Taylor Swift is in her party era.

The "Cruel Summer" singer had an Eras Tour-themed party with a roster of close friends as surprise end-of-tour celebration. The bash was hosted by her boyfriend and Kansas City Chiefs tight end Travis Kelce.

"Epic night for an Epic run!" Kelce's best friend and ex-NFL tight end Ross Travis captioned an Instagram post showing photos from the event.

Kansas City businesswoman Brittany Mahomes, a close friend of Swift and wife of Chiefs quarterback Patrick Mahomes, also posted a carousel of photos from the big night. Friends of the couple were in attendance dressed as her various "Eras," including "Reputation" and "Fearless."

In the photos, Patrick and Brittany Mahomes dressed like Kelce and Swift, respectively. The NFL quarterback wore a tuxedo, channeling Kelce from when he joined Swift on stage for a London performance. Kelce, donning a tux and top hat at the London show over the summer, surprised 89,000 fans inside Wembley Stadium by joining Swift's dancers to "revive" the singer after she fell to the ground during "The Smallest Man Who Ever Lived" before she started singing "I Can Do It With a Broken Heart."

Swift celebrated her 35th birthday on Dec. 13, her lucky number.

After nearly 150 concerts, Swift's Eras Tour came to a close on Dec. 8. Her two-year international trek spanned 18 years of music, providing happiness and magic as the singer traversed five continents.

Travis Kelce joins Taylor Swift onstage during surprise Eras Tour appearance in London: Watch

"Vancouver I want to thank every single one of you for being a part of the most thrilling chapter of my entire life to date, my beloved Eras Tour," Swift said before her final tune "Karma."

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Swift's mega-sized, massive Eras Tour raked in an estimated ticket gross of $1.04 billion from 4.35 million tickets sold, according to music industry trade publication Pollstar. Swift is now the richest female musician with an estimated net worth of $1.6 billion, according to Forbes magazine in October.

This story has been updated to include additional information.

Contributing: Bryan West, The Nashville Tennessean

This article originally appeared on USA TODAY: Taylor Swift, Travis Kelce celebrate end of Eras Tour