In June 2005, Smith appeared on Smashing Pumpkins/Zwan front man Billy Corgan's solo debut "TheFutureEmbrace", sharing vocal duties during the refrain for Corgan's cover of the Bee Gees song "To Love Somebody". In November 2006, Robert appeared on UK trance and trip hop act Faithless's album "To All New Arrivals", on the track "Spiders, Crocodiles & Kryptonite", featuring prominent samples of The Cure's "Lullaby", for which Smith recorded a new performance of the original vocal. Another guest vocal on Paul Hartnoll of Orbital's song "Please" was released as a single and appeared on "The Ideal Condition" in May 2007. Placebo's Steve Hewitt meanwhile announced plans to launch a solo dance/drum'n'bass-influenced album under the working title of "Ancient B" to feature Smith singing some tracks, and bassist Jon Thorne of Lamb.