T-ara has just unveiled additional jacket covers for their upcoming album, "John Travolta Wannabe"! Reportedly, the girls recorded the music video for their title track "Roly-Poly" overnight on June 18th, and simultaneously shot their album jacket photos. The album name is supposed to express a nostalgia for John Travolta's hit movie, "Saturday Night Fever". "Roly-Poly" carries out this feeling by utilizing a disco beat that's reminiscent of early 80's music. It's also said that the album will include five remixed songs from T-ara's last album. The choreography will see 20 backup dancers on stage performing moves from the 70's and 80's; T-ara enlisted the help of choreographer Seo Byung Gu, who's said to be a master of 80's dance in Korea. It's been revealed that '70s teen stars Im Ye Jin and Jeon Young Rok will also be in the MV. [gallery columns=4] T-ara will have their comeback on July 1st, so stay tuned to allkpop for more updates! -- Source: Newsen