When the rhythm gets to rockin' on the swing side And the cats condescend to lend an ear When the beatniks start to gather 'round the ringside There's a certain thing they always want to hear Seven-twenty, seven-twenty in the books What's the tune they like the best When the jive becomes de-luxe What's the number one request Seven-twenty in the books When the band begins to play You should see the dirty looks If the leader doesn't say Seven-twenty in the books It's something that you'll approve Gets you right in the groove To keep in step You really gotta be hep Just be like the kangaroo Or the fishes in the brooks Ev'rybody's jumpin' to Seven-twenty in the books It's something that you'll approve Gets you out o' the groove To keep in step You really gotta be hep Just be like the kangaroo Or the fishes in the brooks Ev'rybody's jumpin' to Seven-twenty in the books Seven-twenty Seven-twenty Seven-twenty Let's keep jumpin' to seven-twenty in the books