According to the official website, the 1st coupling song is called "Kis-My-Venus" and will be the tie in song for the show "Moshimo Tours" our boys are appearing in. The song will be played starting the next episode on Saturday, which features Tamamori and Senga (with Tsubasa from T&T as a guest)! So I guess we'll get to hear it soon.
The 2nd coupling song will be called "Love Is You".
Furthermore, the extra song on the Lawson/HMW release will be a live version of Everybody Go.
Source: Official Kis-My-Ft2 Website, Johnny's Net