Internationally known recording artists The Doobie Brothers rocked on up Route 4 in Rangeley to grace the stage at the Rehab and Wellness Pavilion to benefit the Rangeley Region Health and Wellness Partnership. The crowd of fans from the US and Canada swelled to 2,700 during performances by opening acts Elmore Twist and the L-A Harley Band, topping attendance at last year’s benefit concert by The Beach Boys. Both bands that opened the show donated their time to the benefit concert. Pat Simmons, one of the founding members of the Doobie Brothers, struts his stuff for the audience in Rangeley.