11 stunning style moments Taylor Swift and Selena Gomez have had together over the years

Selena Gomez — who starred in "Another Cinderella Story" — hit the red carpet in a gray, satin minidress with sheer sleeves and a bubble skirt. She also wore simple jewelry and a brown belt tied loosely around her waist.

Swift supported her friend on the red carpet, where she wore a white, sleeveless minidress with crystals across its bodice.

Gomez looked glamorous in a red Dolce & Gabbana gown with a deep-V neckline, satin belt, and floor-length skirt. She also wore gold earrings that complemented Swift's gold, sequin-covered minidress designed by Zuhair Murad.

Though Swift's strapless dress was drastically different than Gomez's, the musician's red lipstick brought their looks together.

Swift had a Marilyn Monroe moment that night, as she wore a white halter dress with a flowing skirt. It was designed by Rafael Cennamo.

Gomez also wore a halter ensemble, though hers had a ruffled skirt and was more daring. Made from a dusty-blue lace, the garment was see-through and revealed her stomach.

Swift wore her signature sparkles in the form of a strapless gown designed by Reem Acra. Its first layer was made from opaque, tan fabric, and its mesh overlay was decorated with multicolored sequins.

Gomez contrasted her that night in a silver Armani gown. It had a plunging halter neckline, a thigh-high slit in its skirt, and a belt with fringe detailing that wrapped around her waist.

At the New York City stop of Swift's Speak Now tour in 2011, Gomez joined her onstage wearing a black bandage dress with tights and thigh-high boots.

But it was her accessories — two rubber Speak Now bracelets — that made a statement and matched Swift's purple tulle dress.

Both musicians wore navy-blue gowns for the event, and each dress had a daring twist.

Swift's sleeveless bandage dress was designed by Hervé Léger. It had a plunging neckline, sparkles across its bodice, and a straight skirt that reached the floor.

But Gomez's Versace look was arguably bolder. Her long-sleeved dress was split up top, revealing a sheer corset underneath. There was also a tall slit in its skirt lined with blue crystals.

Gomez donned three outfits throughout the awards ceremony, but she was wearing a black gown with a plunging neckline when photographed with Swift.

The latter star opted for a green gown with a mesh panel across her shoulders and a cutout at her waist. Michael Kors designed the look.

Onstage, the two friends showed their longtime connection through their fashion.

To mirror Swift's crystal-embellished crop top and shorts set — which she wore throughout the tour — Gomez donned a black, studded bodysuit with thigh-high boots that matched her friend's.

Swift's two-piece outfit, created by Ashish, included a long-sleeved crop top and jogger pants — both of which were covered in rainbow sequins that created an all-over houndstooth print.

Gomez's look was more subdued in color, but also more daring. She wore a black, sleeveless gown with a plunging neckline, waist cutouts, zippered slits across its skirt, and mesh panels.

Gomez stood out that night in a sparkling Calvin Klein gown with a V neckline. It also had sharp waist cutouts and a skirt with a short train.

Swift took a more vibrant approach. Her Versace ensemble included a strapless bralette in a neon-orange shade and a fuchsia skirt made from satin.

Of course, their interaction was both stylish and sparkly.

Swift wore a black, snakeskin leotard with a sparkling jacket over top, and Gomez opted for a strapless jumpsuit covered in black sequins.