Monster Energy, Corona, Calif., has partnered with legendary street artist RISK in launching two new additions to its line of energy-infused, flavor-packed juices: Juice Monster Papillon and Khaotic. To celebrate the launch, Monster will give away a one-of-a-kind "Khaotic" classic car designed by RISK to one winner on Dec. 15. Monster also is offering 50 winners Juice Monster backpacks.

"Partnering with Monster on the Khaotic and Papillon launch has been an amazing opportunity," RISK said in a statement. "Khaotic represents West Coast style with its vibrant juice and energy blend so I wanted to incorporate those elements into the Khaotic car and can designs. Khaotic and Papillon are bright and colorful and I really had fun creating all these pieces with Juice Monster."

A version 2.0 of the Khaos flavor, Khaotic brings a refreshed, revamped take on the classic blend that started it all while Papillon rounds out the Juice Monster family with a light flavor with hints of peach and nectarine, the company says.

Papillon and Khaotic are the latest additions to the Juice Monster portfolio, a line of elevated juice beverages combining real juice and Monster Energy's unique blend, it says.

"We are excited to introduce Papillon and Khaotic to our Juice Monster consumers," said Monster Energy's Chief Marketing Officer Dan McHugh. "Monster Energy is always looking to expand and diversify our product offerings and believe Papillion and Khaotic will offer a new unique taste for our consumers."

Papillon and Khaotic are now available at convenience and grocery stores nationwide. Consumers can enter the giveaway by visiting Submissions are being accepted through Nov. 30.