Tim McGraw will appear in court on May 14 in Orchard Park, N.Y., to answer charges of assaulting an officer last year arising from pal Kenny Chesney’s joyride on a police horse. … They love Reba on Broadway. Originally scheduled to end her run in Annie Get Your Gun on May 27, the country star has decided to stay on The Great White Way through June 22. Her Girls’ Night Out Tour with Martina McBride, Sara Evans and Jamie O’Neal kicks off July 13 in Las Vegas. … Elton John has recorded his song “Country Comfort” for an album of classics that bluegrass legend Earl Scruggs is putting together for release later this year. … Mark McGuinn has recorded a stripped-down, mostly acoustic version of his hit “Mrs. Steven Rudy” that has been sent to country radio stations. The new recording features guitar, banjo, djembe (a West African drum) and electronic drum loops.