On the third of her five nights playing at L.A.'s Staples Center, Swift brought out the former Dixie Chick for a rendition of "Goodbye Earl." She told the crowd how much Maines' music meant to her:

"I can safely and honestly say I would not be a musician if it had not been for this artist," Swift gushed. "I would not have wanted to be a country artist. I wouldn't have dreamed the things that I dreamed, and I wouldn't be standing on this stage today."

Later on, Swift brought out Alanis Morissette to celebrate the 20th anniversary of "You Oughta Know," and told the audience that Morisette "taught us you could get really, really mad if you wanted to."