Three members of the Country Music Hall of Fame made news in Nashville this week.

Vince Gill, who joined the Hall last year, and 1994 inductee Merle Haggard, will take part in the Green Train, a six-week public relations tour that will highlight the need for conservation and awareness of our impact on the environment. According to NewsChannel5.com, the effort — which will involve actors, writers and artists — will begin in Portland, Ore., and conclude in Washington, D.C. sometime in August.

Meanwhile, Eddy Arnold, who joined the Hall of Fame in 1966, broke his hip on Sunday, WSMV reports. Eddy suffered the injury when he slipped while walking to the mailbox at his home in Brentwood, a Nashville suburb. He had hip replacement surgery and will undergo physical therapy during his recuperation.

Eddy, who turns 90 in May, is the oldest living member of the Hall of Fame.