Aerosmith bass player Tom Hamilton has dropped out of the band's current tour as he battles a chest infection.
Aerosmith are currently on a tour of Australia and New Zealand, including a co-headlining slot at the recent Stone Music Festival with Van Halen and Billy Joel.
Hamilton has returned home to the USA to recover, and he plans to rejoin the band and continue their Global Warming tour when he feels well enough.
Filling in for now is film and TV composer David Hull, a founding member of Dirty Angels and a collaborator with Joe Perry in The Joe Perry Project. Hull was flown in from the USA at short notice to fill in for Hamilton. Hull also filled in for Hamilton in 2006 during the Route of All Evil tour, when the bassist was recovering from throat cancer, and again during the band's 2009 co-headlining tour with ZZ Top.