Thundermug (band) became inactive, as of 1976. Band members then commenced various solo projects. Bill Durst joined a ZZ Top tribute band called Tres Hombres, and later was a member of The Brains, a band that released one album in 1980, on Falcon Records. Joe de Angelis became involved in production work, acting as assistant engineer on Meat Loaf's 1981 album, "Dead Ringer". In 1983, Durst released a solo album, "Call Billy", on Passport Records. Joe de Angelis contributed background vocals. In 1989, Durst released a cassette-only second solo album, "Father Earth", on the independent Cottage Records. At the initiative of former
Heart (band) band later in the year. Nancy kept busy scoring her husband's movies "Jerry Maguire" (1996), "Almost Famous" (2000), "Vanilla Sky" (2001), and "Elizabethtown" (2005). In 1999, Nancy released a solo album, "Live at McCabe's Guitar Shop". Also in 1999, Nancy and Ann undertook their first tour without a backing band. In 2001, Ann participated in the A Walk Down Abbey Road: A Tribute to the Beatles tour, which also featured Todd Rundgren, John Entwistle of the Who, and Alan Parsons. The sisters also appeared at benefits and special events, including the tribute to Brian Wilson at New York's Radio City