Tear Gas was a Scottish hard-rock band that released the album Piggy Go Getter on Famous/Paramount in 1970, followed by an eponymous album on Regal Zonophone in 1971. They then teamed with singer Alex Harvey in the long-running Sensational Alex Harvey Band. Tear Gas formed in 1969 as Mustard, a Glasgow rock quartet with guitarist Zal Cleminson, bassist Chris Glen, and 18-year-old drummer Gilson Lavis, a native of Bedford. Their original vocalist, Andy Mulvey, hailed from Scottish beat legends The Poets. By 1970, Mulvey cleared out singer David Batchelor. After Lavis cleared for drummer Richard “Wullie” Monro, Tear Gas signed with Famous Music, a division of Paramount Pictures. Tear Gas released their first album, Piggy Go Getter, in October 1970 on Famous.