Im pretty sure its Styx.
"Babe" in the 70s, "Mr Roboto" in the 80s and "Show Me the Way" in the 90s
Current line-up
James "J.Y." Young – Vocals, guitar, keyboards (1970–present)
Tommy Shaw – Vocals, guitar, mandolin, talkbox (1975–1983, 1995–present)
Lawrence Gowan – Vocals, keyboards (1999–present)
Todd Sucherman – Drums, percussion(1996–present)
Ricky Phillips – Bass guitar, vocals (2004–present)
Chuck Panozzo – Bass guitar, bass pedals (1961–present;is currently a part-time member)
Former members
Dennis DeYoung – Vocals, keyboards, accordion (1961–1999)
John Panozzo – Drums, percussion (1961–1996)
John Curulewski – Guitar, vocals(1970–1975)
Glen Burtnik – Guitar, vocals (1990–1991) / Bass guitar, vocals (1999–2004)
Bare in mind that these were American hits and most of them didnt really feature in the UK charts apart from "Babe".