Ellen, Alanis Morissette and Natalie Maines join Taylor Swift onstage in L.A.

Taylor Swift upped the celebrity ante at her third of five sold-out shows Monday at Staples Center as part of her �1989� tour.

The guests, consciously or coincidentally, nodded to three key facets of her music: her beginnings in country with the appearance of Dixie Chicks singer and songwriter Natalie Maines, the confessional singer-songwriter tradition as she was joined by Alanis Morissette, and her sense of humor with the walk-on by comedian and talk-show host Ellen DeGeneres.

Swift teased the crowd early on saying she would have “not one, not two, but many surprises� over the course of the show.

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“If it were not for this artist,� Swift said before Maines came on stage, “I would not be a musician.� They sang the Dixie Chicks’ hit revenge fantasy “Goodbye Earl,� which Swift said “was my go-to song …. and I’ve probably sung it 7,000 times.�

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FOR THE RECORD

An earlier edition of this post identified the song Taylor Swift sang with Dixie Chicks singer Natalie Maines as “Uncle Earl.� The song’s title is “Goodbye Earl.�

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DeGeneres didn’t attempt to sing, but surfaced wearing a glittery silver suit she paraded as Swift sang her hit “Style.� Morissette and Swift teamed up for Morisette’s signature hit “You Oughta Know,� which Swift introduced to the audience calling it “the greatest breakup song ever written.�

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At her opening-night show Friday, she brought out One Republic singer and songwriter Ryan Tedder, with whom she also collaborated on her blockbuster “1989� album, and Lakers star Kobe Bryant, who unveiled a championship banner now affixed to a wall high above the arena floor, next to several Lakers NBA championship banners, noting Swift’s lifetime record of 16 sold-out shows at Staples.

Saturday’s contingent included Mary J. Blige, comedian Chris Rock, actor Matt LeBlanc and actor-singer Uzo Aduba, known as “Crazy Eyes� on the Netflix series “Orange Is the New Black.�

Swift has two performances remaining at Staples on Tuesday night and Wednesday.

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