In December 1968 at the behest of their long-time recording engineer/producer Glyn Johns, The Small Faces served as a backing band for French singer Johnny Hallyday during recording sessions in Paris for his latest album, "Rivière... Ouvre Ton lit" (aka "Je Suis Né Dans La Rue"), and Marriott invited Frampton along to participate. The week-long sessions for Hallyday may have been another of Marriott's attempts to test the waters to expand the Small Faces lineup, but it was reported that instead tensions were brought to a head and the seeds were sown for the group's break-up in the new year. The Hallyday sessions therefore proved to be the Small Faces' final studio recordings. Embryonic versions of "Bang!" and "What You Will" from Humble Pie's debut album were recorded by the Small Faces and Frampton during the sessions, and the five musicians can be heard playing together (and also in various combinations with Hallyday's regular band) throughout the album, with Frampton's distinctive guitar work especially prominent. Their performances together offer a tantalising glimpse of how an expanded Small Faces lineup might have sounded.