Tony Bennett, Marlo Thomas & More Watch Robin Williams Get Wild in Bengal Tiger

With Robin Williams making his Broadway debut in Bengal Tiger at the Baghdad Zoo, plenty of the Oscar winner's famous friends are heading to the Richard Rodgers Theatre to see his acclaimed performance. Williams's dressing room was pretty packed on May 5 when 15-time Grammy winner Tony Bennett paid a visit alongside Marlo Thomas, Phil Donahue, Elaine May and Stanley Donen. Click below to take a look at the celebrated visitors enjoying their Bengal Tiger get-together!