Unlike its peers, Overkill had no trouble adapting to the rapid stylistic changes of the '90s; in fact, the band used changing trends as an excuse to reconnect with its roots. 1994’s W.F.O. was Overkill's most punk-influenced album since its very first release. Songs like “Fast Junkie,” “Where It Hurts," and “They Eat Their Young” have as much in common with Bad Brains and Let There Be Rock–era AC/DC as they do Metallica. It was clear that Overkill had at least temporarily abandoned the alt-rock experiments of I Hear Black in favor of a renewed campaign of ferocity. Thanks to the double-stacked guitars of Merritt Grant and Rob Cannavino, a song like “What’s Your Problem” is at once stealthy and bombastic. As the band rekindles its youthful anger, singer Bobby Ellsworth sounds grittier than ever. His voice shows a new edge on “Supersonic Hate” and “Up to Zero,” with the operatic yelps of the '80s replaced by a guttural growl. Stripped-down, lean, and right to the point, W.F.O. shows why Overkill remained one of the genre’s most respected outfits, even at a time when thrash itself was in danger of extinction.