Kylie Jenner officially kicked off her 20th birthday festivities Wednesday night as she attended Kendrick Lamar's concert for the third time in a week in downtown Los Angeles.

The birthday girl - who will officially turn 20 on Thursday - was joined backstage at Staples Center by her momager Kris, big sister Kendall, and half-sisters Khloé Kardashian and Kim Kardashian West.

The Lip Kit mogul got an affectionate hug from her new rapper flame, Travis Scott, who opened for The Damn Tour's three-night stand in LA alongside D.R.A.M.

For her special night, Kylie dressed down in a white tank mini-dress beneath a matching hoodie and sneakers selected by stylist Jill Jacobs.

The Keeping Up with the Kardashians stunner - whose BFF Jordyn Woods never left her side - also sported waist-length hair extensions by Tokyo Stylez as she treated herself to a bag of Dippin' Dots. 

Though her sweet choice certainly wasn't reflective of the glamour inside her bash, as Snapchat posts revealed that there was also an ice sculpture of Kylie's hourglass figure, which her included her famous derriere.  

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