Taylor Swift’s ‘Red’ Tour: The Biggest, Best, Most Star-Studded Slumber Party EVER! (VIDEOS)

Check out our favorite guest star moments during Taylor Swift's Red Tour!

Check out the faves-on-faves AH-MAY-ZINGNESS that was Taylor Swift’s “Red” Tour.

After six months and 63 shows, Taylor Swift‘s “Red” Tour finally closed out its North American leg. (Shout-out to Oceania! Tay-Tay’s heading your way in November.) Hearing those sweet, somber swan songs and razor-in-the-cupcake kiss-off tracks in full blast was incredible! But, honestly? That wasn’t even our favorite part.

That honor would have to go to the fact that the entire exercise was possibly just a means for the “I Knew You Were Trouble” singer to duet karaoke songs with all of her faves. Carly Simon, Jennifer Lopez, Hunter Hayes, Cher Lloyd, and more turned up to get their Tay-Tay on, much like we are ALL about to right now! COME, let us revisit the glory and the splendor that was Taylor Swift’s stadium-size karaoke slumber party — er, the “Red” Tour.

1.) JENNIFER LOPEZ, “JENNY FROM THE BLOCK“: Performing at L.A.’s Staples Center, Tay-Tay described J. Lo’s classic as her “hairbrush song” (as in, the song Taylor would sing into her hairbrush alone in her room when she was younger).

Check out our favorite guest star moments during Taylor Swift's Red Tour!

+ Watch TAYLOR SWIFT + JENNIFER LOPEZ PERFORM “JENNY FROM THE BLOCK” LIVE IN LOS ANGELES.

Watch more surprise guest highlights from Taylor Swift’s “Red” Tour after the jump.

2.) CARLY SIMON, “YOU’RE SO VAIN”: Seeing Carly join Taylor on stage for an iconic song that is, like, the REASON we have songs like “We Are Never Ever Getting Back Together” is amazing and inspiring. Knowing that Carly revealed who “You’re So Vain” is about to Tay-Tay before swearing her to secrecy is frustrating and envy-inspiring. It’s all about balance.

Check out our favorite guest star moments during Taylor Swift's Red Tour!

+ Watch TAYLOR SWIFT + CARLY SIMON PERFORM “YOU’RE SO VAIN” LIVE IN FOXBOROUGH, MASS.