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Britney Spears, James Corden, Carpool Karaoke

CBS

Did you catch Britney Spears' fun Carpool Karaoke with James Corden Thursday night?

The Glory-album songstress sang a medley of her most famous songs, including "Oops!...I Did It Again" and "Womanizer," but while you were focusing on Brit Brit and Corden's awesome duets, you might have missed some goings-on in the background (or even the foreground).

Here are 5 things that might have escaped your eye while you were too busy singing "...Baby One More Time" at the top of your lungs:

1. Carpool Karaoke might be about the famous musician's songs, but Spears referenced another famous group's music: Ace of Base. While discussing her desire for more kids, B. Spears casually sings, "All that she wants is another baby," a famous lyric from Ace of Base's hit song "All That She Wants."

2. Corden and Spears more than just coordinate outfits during their "Hit Me Baby One More Time" duet. Throughout the majority of the video both Britney and Corden wear all-black ensembles.

3. Carpool Karaoke is partially about driving throughout downtown Los Angeles, but for a portion of this segment Corden drives around a CVS parking lot.

4. When it came time to mouth the talking interlude in "Oops!...I Did It Again," Brit Brit stumbled on some of the words. We can't say we blame her, though, as the hit song came out 16 years ago.

5. Britney loves her choker! Although she took of her sunglasses at various times throughout the ride, Britney kept her black choker on—even when she put on her schoolgirl ensemble.

Is there anything else you noticed? Sound off in the comments!