Bit by bit, the performers on this year's Tampa Bay Rays Summer Concert Series are seeing the light of day. On Thursday, the team announced two new acts to take the stage, both from the pop-rock family: Train and O.A.R.

Pop smashmakers Train (Hey Soul Sister, Drops of Jupiter) will take the stage after the Rays play the Boston Red Sox on July 13. And the hacky-sackin' jammers of O.A.R. (This Town, That Was A Crazy Game of Poker) will perform following the Rays and Oakland Athletics on Aug. 24. Both concerts are free with game admision.

Here's the full Tampa Bay Rays Summer Concert Series lineup so far:

June 2 (Rays-Orioles): LL Cool J

June 17 (Rays-Marlins): ZZ Top, 3 Doors Down and Gretchen Wilson

June 30 (Rays-Tigers): Earth, Wind and Fire

July 13 (Rays-Red Sox): Train

Aug. 5 (Rays-Orioles): The Wiggles

Aug. 24 (Rays-Athletics): O.A.R.

Click here for more details on upcoming Rays promotions.

-- Jay Cridlin, tbt*