Did Stevie nicks sing on any of todd rundgren songs?

Yes. Stevie Nicks sang on Todd Rundgren's album "A Wizard, a True Star" released in 1973. Stevie sang backing vocals on the track "Never Never Land". Stevie Nicks also recorded a demo with Rundgren for the song "The Enchanted Cottage" which was released in 2000 on the compilation album "The Definitive Collection".

Additionally, Rundgren played synthesizer on Fleetwood Mac's album "Rumours", which featured Nicks as a lead singer.