Daft Punk's new album could be released within the next three months, according to a songwriter with whom they have been secretly composing material. Paul Williams, who co-wrote the Muppets' 1979 song Rainbow Connection, said he has done "a couple of tunes" for the French DJs' upcoming record, "working with another composer writing lyrics".

"I should basically not be talking about it at all," the Oscar-winning Williams admitted in an interview with the Hollywood Reporter. "They want a press blackout on the album until it's out." And so, despite the revelation that the duo's first studio LP in seven years could be out "as soon as June", Williams is reticent about offering details. "I just think they're amazingly brilliant," the 71-year-old said, "the way they explore the possibilities of sound."

Last month, Chic's Nile Rodgers revealed that he and Daft Punk had met to discuss "making a new record together". It's not clear whether these plans apply to their next album or a future release. In spite of a busy touring schedule, the group have had lots of time to develop new material: since 2005's Human After All, Daft Punk's only major releases have consisted of a live album and the soundtrack to Tron: Legacy.

Daft Punk's Thomas Bangalter and Guy-Manuel de Homem-Christo have rarely worked with outside songwriters – or, at least, these songwriters have been uncredited. Although the duo's use of samples requires them to sometimes share writing credits, they have rarely collaborated with hired hands such as Williams. For more than 50 years, Williams has penned songs for acts such as Barbra Streisand, the Carpenters, the Monkees and himself.