ON AND POPPIN!! Kim Kardashian’s BREASTS Looked Like Two GIANT WATER BALLOONS . . . At The Concert Last Night!! (Did She Get A RE-UP???)

: Kim Kardashian let her TIDDAYS OUT in a sheer top while posing on stage during day two of the 2014 Bonnaroo Arts and Music Festival on Friday evening in Manchester, Tenn.

The 33-year-old reality/porno star was there to support her husband Kanye West, who closed out the night with a high-octane performance that ended with a mega fireworks display.

“Oh hey 100,000 people! #Bonnaroo,” Kim captioned the photo on her Instagram page.