In the last few years, this rumour seems to have become accepted as pretty much fact. For instance: from wiki: Marc Bolan of the glam rock band T. Rex is believed to have played guitar on "Nutbush City Limits", although he received no credit for his participation. Gloria Jones, his girlfriend at the time—who herself provided backing vocals for Ike & Tina Turner in the 1960s—stated definitely that this was the case in the 2007 BBC4 documentary Marc Bolan: The Final Word. Considering that Bolan toured the US extensively and resided in the Los Angeles area during the mid-70s, and that he is also acknowledged to have contributed to Ike & Tina Turner's 1974 singles "Baby—Get It On" and "Sexy Ida", Jones' claim likely has some truth to it, especially as the guitar sound on "Nutbush City Limits" closely resembles Bolan's style. But I'm not sure. I don't think it 'closely resembles Bolan's style'. I have most of the T. Rex albums and can't think of a song where Bolan used that exact same sound again. If he'd come up with a fantastic guitar sound like that, surely it would have dominated his work from 1974 onwards. Let's face it, he was the sort of musician who made an idea go a long way... Also, Nutbush was a major UK/US hit, so surely Bolan would have boasted about playing on it? Are there any other likely candidates who could have played the guitar on Nutbush (Ike?), or do we have to take Gloria Jones' word for it?