Sobe, a brand of Purchase, N.Y.-based PepsiCo Inc., is turning 21 this year and launched the #SOBENotSorry campaign as part of its celebration. The brand also released two new flavors: Midnight Mojito (Blackberry Mojito) and En Fuego (Spicy Limeade). Midnight Mojito features blackberry flavor twirled with the taste of mint, and En Fuego offers lime flavor paired with a little bit of heat, the company says. Both products now are available at retailers nationwide.

Sobe’s 21st birthday celebration with Charli XCX in partnership with Elite Daily will take place at the SLS Las Vegas Hotel & Casino on Sept. 3 over Labor Day weekend.

“Sobe is a brand with a great legacy and we’re excited to celebrate 21 years of delicious, unique concoctions and bold flavors. With the launch of the #SOBENotSorry campaign, we’re marking the occasion in a big way with the help of Charli XCX at our 21st birthday bash in Las Vegas and the launch of two new flavors for all the adventure seekers out there,” said Christine Ngo Isaac, Sobe brand lead, in a statement. “These new flavors, Midnight Mojito and En Fuego, taste amazing, have less calories and sugar per serving and are packed with vitamin C.”

Emily Ingram, publisher of Elite Daily said: “ is delighted to partner with Sobe on its 21st birthday with Charli XCX at the SLS Las Vegas. Americans have enjoyed Sobe for 21 years and we’re honored to celebrate this milestone event with them.”

Through mid-August, fans can show how they are celebrating Sobe’s birthday by entering a national sweepstakes for a chance to win one of 10 Sobe prize packs or a grand-prize trip to the Sobe 21st Birthday Party at the SLS Las Vegas taking place on Labor Day weekend.

Fans can visit the Sobe Sweepstakes website to learn the official rules of the # SOBENotSorry national sweepstakes. They also can take a photo of themselves with any Sobe Elixir or Sobe Tea product and post the photo on their personal Instagram account with hashtags # SOBENotSorry and #SLSLasVegasSweepstakes.

Fans can also visit this link to RSVP for the free #SOBENotSorry 21st Birthday bash.

With the launch of its “#SOBENotSorry” campaign, Sobe also has revamped its website — — highlighting bold new graphics and the return of the brand’s ‘fantasy names,’ including fan favorites Morning Patrol (Strawberry Banana) and Lizz Blizz (Piña Colada), the company says. New drink concoctions also are available on the website.