As much as Taylor Swift's performances set social media abuzz during her five-night concert run in Los Angeles this week, the main event remained the same: Which celebrity bestie would she bring onstage that night?
With Swift now bound for San Diego for the next stop on her 1989 World Tour, we're recounting the actors, athletes and artists who helped crown the pop queen's L.A. residency.
Night one: Friday
Swift's first night was pretty straightforward — for a seven-time Grammy winner who ranks only behind Rihanna in total music sales — with the Lakers' Kobe Bryant reminding the crowd who has been selling out Staples Center recently, honoring Swift's record 16 sold-out concerts, including these five.
The musical guest highlight of the evening came when One Republic frontman Ryan Tedder, who worked on “1989” as a producer and songwriter, came onstage for a duet with Swift on One Republic's "Counting Stars."
Night two: Saturday
By the second take of her residency, Swift was stepping up the guest appearances. She started by welcoming the multitalented Emmy Award-winning star of "Orange is the New Black" Uzo Aduba for a duet of Swift's 2008 hit "White Horse."
Demonstrating the real pull of the country star-turned pop sensation, Swift brought out actor-comedians Chris Rock and Matt LeBlanc, as well as model Sean O’Pry, to strut with her down the stage to "Style."
However, the biggest moment on Saturday night came when the audience discovered that Swift wasn't just going to cover Mary J. Blige's new song "Doubt," she was bringing the R&B songstress onstage to help her through it.
Night three: Monday
After a day off Sunday, Swift returned to her third sold-out show at Staples Center with a guest list that played off her past, her present and Ellen. Celebrating the country upbringing that inspired her early work, Swift welcomed the Dixie Chicks' Natalie Maines for a rendition of the hit, "Goodbye Earl."
Then it was time to scream out all the heartbreak as Swift and '90s alt-rock star Alanis Morissette teamed up for what Swift called "the greatest breakup song ever written," which means a lot coming from Swift.
And then there was Ellen DeGeneres. And you know she danced. Wearing a sparkling silver one-piece, Degeneres performed alongside Swift on "Style."
Night four: Tuesday
Swift maintained her run of star-studded musical guests on Tuesday, when John Legend joined Swift for "All of Me," in a move that Swift said gave her "all the feels."
The rest of Swift's Tuesday night concert leaned to the rock world, with surprise guest spots from Beck, who played his latest, "Dreams," while the deft guitar work of St. Vincent's Annie Clark erupted with pyrotechnics.
Night five: Wednesday
On the final night of her five-night residency, Swift knew she had to go out strong, saying goodbye to Los Angeles with her best friend Selena Gomez, who took the stage to perform her new song, "Good For You," strutting down the catwalk and trading verses with Swift.
Lisa Kudrow — do you get the feeling Swift enjoyed "Friends" in the '90s? — joined Swift for the joke tune "Smelly Cat," which was originally performed by Kudrow's "Friends" character Phoebe Bufay.
To finish it off, Swift went to her longtime musical crush, Justin Timberlake, for a duet of JT's ballad "Mirrors," marking Timberlake's first performance since his wife, actress Jessica Biel, gave birth to their first child.
Though there was no Lorde or "Trap Queen" to be heard over Swift's five-night run at Staples Center, she demonstrated, through every musical or comical guest appearance, her established pop royalty, nonetheless.