Talk about a slap in the face -- after earning $8 MILLION from her infamous Pepsi deal back in 2001, Britney Spears went turncoat by investing in Coca-Cola! Britney sold 574 shares of Coke for a modest profit of $3,200. She held on to 208 shares. As for Pepsi ... it's nowhere to be found in her portfolio. Brit sold a few other random stocks for a profit -- including AT&T and Deere & Co. -- but it wasn't all gravy: she lost $640 on McDonald's and $1,200 on Chipotle. She eats at both places enough that you'd think the stock would be worth more. Overall, Brit netted over $97,000 last year in stock earnings ... not bad, but for her it's chump change (she'll earn more than triple that PER SHOW in Vegas).