The rocker, a longtime Oasis fan, began to realise his drug of choice was no longer cool when Gallagher opened up about his decision to quit a decade ago - and he vowed to stop using on the spot.
Ulrich tells Britain's The Mirror, "In the early days, I'd always get drunk way faster than the other guys and I realised that if there was a little bit of cocaine involved I could stay up longer, instead of ending up face down in the corner, passed out three hours before the party ended.
"I loved the social elements of cocaine. I loved the danger of it. Then, about 10 years ago, I read an interview with Noel Gallagher, in which he said, 'I just stopped doing cocaine'. I thought that was really cool. It felt so fresh, so honest, so pure - I love that side of him. I've never had an addictive personality, so I woke up one day and said, 'Enough'."
Not so much the party animal these days, the drummer, who is the face of Danish beer companies Carlsberg and Gammel Dansk, admits he's not actually a big beer drinker.
Speaking before Metallica's recent Glastonbury headlining slot, he said, "Afterwards, yes, I'll have a drink. Champagne, maybe tequila, vodka. I like clear drinks; I don't really do beer."
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