Music publishers who sued Peloton for copyright infringement in March are now doubling their demand for damages to $300 million, claiming they’ve discovered another 1,200 songs that the high-tech exercise bike maker used without permission.

Publishers such as Downtown Music, Big Deal Music and Round Hill now contend Peloton has used a total of more than 2,200 unauthorized tunes in the video fitness classes it broadcasts to its bike owners.

“It is only as a result of initial discovery in this lawsuit that the full scope and extent of Peloton’s unlawful infringement has started to come into focus,” the publishers said in papers filed Thursday in New York federal court.

The amended complaint expands the copyright suit to include “some of the most famous and popular songs ever recorded,” citing such hits as Ray Charles’ “Georgia On My Mind,” The Who’s “I Can See For Miles” and the Beatles’ “I Saw Her Standing There.”

Those classic tracks join a list of previously cited hits such as Bruno Mars’ “Grenade,” Katy Perry’s “Roar” and Justin Timberlake’s “SexyBack.”

The timing could hardly be worse for Peloton, which on Wednesday revealed plans to charge between $26 and $29 per share for stock to be issued in an imminent initial public offering.

The IPO is expected to give the New York-based company known for its video-streaming stationary bicycles a valuation of up to $8 billion.

In the Form S-1 detailing the offering, Peloton admitted to music-related risks.

“We depend upon third-party licenses for the use of music in our content and an adverse change to, loss of, or claim that we do not hold necessary licenses may have an adverse effect on our business.”

Peloton has also accused the National Music Publishers Association of instigating “a coordinated effort” on behalf of some of its members “to fix prices and to engage in a concerted refusal to deal with Peloton.”