Taylor Swift's surprise guests during her 1989 World Tour have so far ranged from the predictable (Lorde, Karlie Kloss, Lena Dunham, Cara Delevingne) to the totally obscure (Matt LeBlanc, NBA player Kobe Bryant, OITNB's Uza Aduba, Joan Baez).
But whoever planned the guest list for Taylor's gig at the Staples Centre in Los Angeles last night deserves to take a bow, because we were totally blown away by all three.
After first welcoming Natalie Maines from the Dixie Chicks in front of an 18,000-strong crowd , Taylor was joined by none other than Ellen DeGeneres… who dressed up for the occasion in a sparkly ensemble VERY similar to Taylor's.
The chat show host joined Tay for a rendition of Style, complete with lots of sashaying and twirling in her sparkly tutu:
Work it, girl.
It was the third guest of the night that really sent the internet into meltdown, though, with the crowd roaring as Taylor brought singer Alanis Morissette on from backstage.
Yup, possibly the only singer out there who can beat Taylor in the "break-up song" stakes. The pair proceeded to serenade the crowd with Alanis' hit You Oughta Know:
Taylor seemed exhilarated after the show as she took to Instagram to thank Alanis, posting a picture of the pair and writing, "I don't know how to process how amazing she was. Just absolutely magnificent."
— Taylor Swift (@taylorswift13) August 25, 2015
What a show!