CMJ may be drawing to a close, but there’s still time to gain entry to an exclusive party this weekend. On Saturday, October 22, Crystal Castles, the Rapture, and A-Trak will be performing as part of Flip Out: A Never Hide Concert. The 21+ event, sponsored by SPIN and Ray-Ban, will take place at an undisclosed location in the city.

There are three ways to get in:

1. Head to a participating Optyx location and purchase an item from the Ray-Ban Flip Out Sun Collection or Ray-Ban Polarized Frames by Saturday; wristbands will be distributed while supplies last. The participating locations are 2384 Broadway, 1076 Third Avenue, 228 Second Avenue, 599 Lexington Avenue, 2009 Broadway, 1225 Lexington Avenue, 655 Sixth Avenue, and 862 Lexington Avenue.
2. Look for wild postings on the streets of SoHo and LES and enter for a chance to win when you take a photo of the mobile code.
3. Follow @SPINmagazine on Twitter to see clues of where wristbands will be distributed.

For “fashionable fans in-the-know,” fear not, wristbands are being handed out “around college campuses, downtown hotspots, and concert lines,” according to the announcement from SPIN. Some CMJ badge holders will be granted admission, subject to capacity. For everyone else, good luck!

Ra Ra Riot has announced a surprise show tomorrow night (Tuesday) at Union Hall in Brooklyn. The prolific indie rock band puts on a great live show — CLICK HERE to check out photos of their appearance at All Points West last Summer. Montreal’s Plants and Animals will open the show. Get your tickets HERE.