In a case of worlds colliding, Justin Bieber and girlfriend Selena Gomez found themselves at a Phish concert on Wednesday night. Wait, did that say Phish? Surely it was a Dave Matthews Concert or something. How exactly did Justin and Selena decide to plunge head-first into the Phish tank?

According to The Hollywood Reporter, Justin’s guitar player and musical director Dan Kanter is a massive Phish fan, and he’s been wanting to drag Biebs to a show since they started working together. Since he turned 18 recently, Kanter thought it finally might be appropriate to expose Justin to the very “adult themes” present at a fish show (see: druuuuuuuugs).

Witnesses noted that Justin and Selena looked like “they were having a blast,” and they even went backstage to meet some members of Phish and their extended family at intermission. In the photo above, you can see Justin and Selena fraternizing with a young Phish-ling. Justin really dressed the part; he’s wearing the finest tie-dye shirt in his wardrobe.

When Bieber met Phish frontman Trey Anastasio and bassist Mike Gordon, they found common ground in talking about music, and in singing the praises of renowned Phish lighting designer Chris Kuroda. Kuroda will soon be joining Justin on the road for the Believe tour. Check out some of his work below:

You’ve gotta wonder if being at the Phish concert had an effect on Justin creatively. If Bieber would like to expand his base to the die-hard Phish audience, here are a few tips that might make him more appealing to fans of jam-bands.

1. Aligning With Drug Culture

This might be kind of controversial for Bieber, but seriously, if he can just sneak in one love song for Mary Jane on his next album, he doesn’t have to worry about keeping the teeny-bop generation interested. Weed fans are weed fans for life.

2. Extended Drum Solos

If he can stretch this out to about 25 minutes, jam-band fans will lose their shit:

3. Playing “Baby” In 9 Different Styles & Keys

Have you heard it with a country shuffle beat in four different time signatures? Then you haven’t lived.

4. Shun The Mainstream

No more perfume. No more music videos. Justin would have to go against his instincts on virtually everything in order to attract a jam-band audience.

5. Just Jam, Man!

If the bridge of “U Smile” could somehow be 45 minutes long, that would be ideal.

Beliebers and Phish Heads. Are they really so different?

[via The Hollywood Reporter]