After a couple of years of relentless touring, Humble Pie capitalized on their loyal U.S. following to capture the market with this, their fifth studio album. Although lead guitarist Peter Frampton was replaced by Clem Clemson -- an excellent player -- the band remained essentially the same. Led by singer/guitarist Steve Marriott's soulful wail, the group enjoyed a huge hit from this record, "30 Days in the Hole" -- the track which defined the Pie's not-so-subtle appeal. The rest of the record is equally funky and intriguing. Stephen Stills guests on "Road Runner 'G' Jam," playing some nasty Hammond organ fills. In the end, though, the group defined themselves as the undisputed leaders of the boogie movement in the early 1970s, as a band.