Selena Gomez [1] walked the iHeartRadio Music Awards red carpet [2] in a strikingly sexy Mugler jumpsuit [3]. But fast-forward just a few short hours, and the star was wearing a whole new look. When Selena took the stage to honor her BFF, Taylor Swift [4], she was in jeans. Casual, no? Selena completed her high-waisted denim with neutral pumps, a duster coat, and a ribbed crop top. The only accessory she kept on throughout the night [5] was her statement choker [6].

And get this: it's not the first time Selena's switched up her look mid award show. This season, she also slipped into a Fall '16 Cushnie et Ochs number [7] at the Grammys, though she had shown up in Calvin Klein. And at last year's VMAs, Selena ditched an overly sheer [8] silhouette for something silky and slitted. Read on to see Selena's most recent outfit swap. While we're not entirely sure what the reasoning was for the switch-up, the message is loud and clear: when it comes to her wardrobe, Selena's the boss.

Selena's Red Carpet Look

Selena strolled down the red carpet [9] at the iHeartRadio Music Awards in this cutout Mugler design, accessorizing with Giuseppe Zanotti heels, a Jimmy Choo clutch, and a triple-strand choker.

Selena's Denim Look

Later, Selena slipped into something more comfortable: high-waisted jeans, a ribbed tank, a longline cardigan, and pumps.

Selena kept on her key accessory of the night: an edgy statement choker [10].

She debuted her jeans on stage when she honored Taylor Swift [11].