Taylor Swift Fangirls Over Fetty Wap On Stage in Seattle: 'Happiest Day of My Life'

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The only way Swift can top this is if she moves in with Fetty Wap and her entire girl squad.

Life goal, achieved!

We would have guessed anytime a song went platinum, hanging with boyfriend Calvin Harris or filming "Bad Blood" would have been one of Taylor Swift's favorite moments, but apparently, her best day ever occurred Saturday night in Seattle when she was joined on stage by Fetty Wap.

"No big deal just the happiest day of my life," the 25-year-old pop star wrote on Twitter.

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Unless she's the greatest actress in the world, Swift isn't pretending to be this overjoyed. A fan captured the guest appearance on the latest stop on The 1989 World Tour in an Instagram video, and the "Bad Blood" singer looks like she's in heaven, sauntering up stage with Fetty Wap looking completely enamored.

Fetty Wap apparently kept Swift up all night, as the excited singer gushed that she was "unable to find my chill because of @fettywap1738 singing 'Trap Queen' for 60,000 people in Seattle. Amazing night!!"

Don't worry, Harris! We're sure you're safe. She's pretty enamored with you, too.

As for the rapper, he was thrilled to join Swift's squad, thanking her while also accurately calling out the "Taylor Zoo."

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Nothing like a Taylor Swift concert to bring out your animal instincts -- and two more major guests. Not only did Fetty Wap make Swift's night, but adorable couple Ciara and Seattle Seahawks quarterback Russell Wilson also turned up at the show.

Can you imagine if Wilson proposed at CLink, where he's help lead his team to the Super Bowl, while at a Swift concert? Is that just our dream celebrity engagement story? Okay, just checking.

In any case, Ciara and Wilson joined Fetty Wap in singing Swift's praises, with the "I Bet" singer even telling Swift, "You're truly awesome."

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The next few stops on The 1989 World Tour are Santa Clara, California, Glendale, Arizona, and Los Angeles, and we can only imagine who she'll surprise fans with during that latter five-day run in the City of Angels.

Like Swift, Kate Hudson is also a huge fan of Fetty Wap. Watch the actress and her 11-year-old son rap along to "Trap Queen" in the adorable video below.