A legendary piece of musical history is up for grabs — but not for a song.
At 421 W. 54th St., a penthouse unit asks $3.99 million, and it’s located inside the building that formerly housed a famed recording studio named The Hit Factory, The Post has learned.
The residence presents a rare opportunity to own a piece of the studio’s legacy, where musical legends crafted songs that remain famous to this day.
The Hit Factory operated inside the building’s walls from 1991 until 2005. It’s where everything from Mariah Carey’s “Butterfly” to Beyoncé’s “Dangerously in Love” were recorded — as well as *NSYNC’s “No Strings Attached” and the still-respected “Titanic” soundtrack.

