Hal Blaine Strikes Again is a rubber stamp used by Blaine to mark music scores and places where he has played. Drummer and author Max Weinberg, in his introduction to the chapter on Blaine in his book, writes:
Eleven years later our band played Wembley Arena, near London. After the show, while we were relaxing backstage, Bruce asked me to come into his dressing room. I went in, he pointed to the wall and said, "Look at that." I looked at the wall but didn't see anything except peeling wallpaper. "Look closer," he said. Finally, I got right down on the spot he was pointing to. and right there, in a crack in the paper, rubber stamped to the wall, it said HAL BLAINE STRIKES AGAIN. When asked to explain about the stamp Blaine replied, "I always stamp my charts. And there's a reason why I started that; it wasn't all ego." He went on to describe that occasionally he would need to find a particular chart amidst "five hundred pieces of music in a pile" and he needed some mark to do so. "Eventually I had a rubber stamp made up, and from that day on I've always stamped every piece of music I play, whether it's a demo or something I play at a friend's house."
Another drummer, Mike Botts, then with the band Bread, recalled: "Every studio I went to in the late sixties, there was a rubber stamp imprint on the wall of the drum booth that said, 'Hal Blaine strikes again.' Hal was getting so many studio dates he actually had a rubber stamp made. He was everywhere!"