Source: Mezamashi (currently airing)
Furthermore, here's an update on the BEGINNERS Original Soundtrack Bonus DVD and Special Track:
The special track is called:
24.WANNA BEEEE!!! -Jazzin'park Beginners Remix-
The song is apparently going to be sung by Fujigaya and Kitayama only with newly arranged vocals.
Okay the official Kis-My-Ft2 Homepage actually says there are going to be 40 (!!) minutes of off-shot footage!!
You can also check the covers on the official website.
Also, BEGINNERS and "Watering Kissmints" are doing a special collaboration. The "Lemon+Mint" flavor edition (which was featured in the drama in episode 3) is going on sale on September 4th.
Source: Beginners Drama Official Homepage, Kis-My-Ft2 Official Homepage