In celebration of the newest addition to the McCafé beverage line, Frozen Strawberry Lemonade, McDonald’s has announced an online contest, giving customers a chance at $5K in cash and a $5K vacation package. It’s called McDonald’s Perfect Pair Contest and it kicks off next Monday, May 9 (same day as the product’s launch). Consumers are asked to ‘pair’ up (with a partner, friend, relative, co-worker, etc.) and through Twitter, answer why they are McDonald’s Perfect Pair in 140-characters or less.

The contest opens on May 9 and all Twitter submission are due no later than May 15. After the first round a judging panel will select 10 finalist pairs to compete for the Grand Prize. Two runner-up pairs will also receive $1,000 in McDonald’s Arch Cards, to be split between the pair.

Visit http://mcdfslpairs.mcdonalds.com/ to enter.