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(TMZ) - Guns N' Roses partied pretty hard in their heyday, so it makes sense they'd know the craziest drinking games - case in point, something called "Wear the Lamp Shade" as explained to us by former dummer Matt Sorum.

Sorum, who banged the buckets in GNR for a better part of the 90s, was walking his dogs in Studio City Wednesday when a TMZ photog got him talking about games the band played on the road, and one in particular was quite simply ... enlightening?

According to TMZ, it involves booze (obviously), a hotel room (of course), naked girls (how could it not) and ... (drum roll) ... a lamp shade -- the video explain the rest. 

"Wear the Lamp Shade" - GNR tested, Brick Tamland approved.

READ MORE: TMZ

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