They join previously announced crowd pleasers: Anthony David, Big Daddy Kane, Bridget Kelly, Blackstreet, Jody Watley and Mint Condition.

WSJ: Trey Songz added to Essence Fest lineup

Those watches are rare, and many of those watches were really used with almost none available in mint condition today.

FORBES: Wrist Watch Brands & Models Of High Value

Historically, most has been sent to clearance centers on or off site, with only unopened items in mint condition returned to the shelves.

FORBES: Magazine Article

Rather than buy another multi-thousand-dollar home entertainment system to recapture that new quality, I can invest a small sum in upgrading my current system back to mint condition.

FORBES: Your 30-Second Pitch: Speak Not in Code -- Talk as a Human

SteinerSports.com is a good resource for mint-condition sports memorabilia, providing a wide range of leagues and teams.

FORBES: Style