"Imagine getting paid an estimated $6 million for your involvement in this three-word jingle: "I'm Lovin' It." Yep, Justin Timberlake inked a lucrative deal with McDonald's. (Guess you could say he wants you to "buy buy buy.")"

"Or how about earning an estimated $50 million to promote Pepsi products?That's the endorsement deal that megastar Beyonce signed up for back in 2012."

"A new study published in the journal Pediatrics describes the lucrative endorsement deals of 65 music celebrities — including Britney Spears, Maroon 5, Timberlake and other stars popular with teens and young adults. These celebrities promoted 57 different food and beverage brands (see chart), ranging from soda to energy drinks to pizza, Pop-Tarts and candy."