Coachella 2015 Fashion: Kylie Jenner In Blue Hair; Sister Kendall Wears Bikin Top

The Jenner sisters stood out during the fashion watch for the Coachella 2015, with Tyga's rumored ex sporting a blue hair while the rising model wore a bikini top that showed off her svelte figure.

Day 1 of the 2015 Coachella Valley Music and Arts Festival saw the performances of rock legends, AC/DC; Azealia Banks and Alabama Shakes who performed before a large crowd in Indio, California.

E! News reported that the Coachella 2015-aside from featuring indie and mainstream musicians-is also an excuse for celebrities to show off their fashion styles.

"Kendall Jenner, 19, was seen wearing an outfit almost matched 17-year-old sister Kylie Jenner's new look, her recent return to blue hair," it said.

"The 19-year-old model wore ripped bright blue jeans shorts that ended just above her knees, paired with a bikini top and tan vest as well as several necklaces. Kylie, who matched her locks to her nails, sported a cream romper and ankle-length white vest," the report added.

Kylie Jenner, who's rumored to be dating Tyga, and sister Kendall Jenner were partying at the event with model Haley Baldwin.

Justin Bieber also showed off his distinct fashion style at the Coachella 2015.

The "Baby" singer was wearing a black fedora and black shirt, which he accented with a blue hankie tied around his neck. He also wore tight light blue denims and a pair of red sneakers.

An insider told E! that there are "no girls with Justin. He came with a small crew of about three guys. Kylie showed up with a group of girlfriends. They didn't stay long."

Earlier, a photo of Justin Bieber getting cozy with Kendall Jenner was published, which prompted dating rumors. The pop star was also rumored to be romancing the model's BFF, Hailey Baldwin. The image was posted by the Biebs on his Instagram.

In the photo, Kendall Jenner gave a preview of her Coachella 2015 fashion with a yellow bikini top as she fiddled with a pup while Justin Bieber leaned down to put his hand on her waist.