Kenny Ches­ney and Tim McGraw are poised to make coun­try music his­tory by scor­ing only the sec­ond Bill­board Coun­try Songs num­ber one debut in the cur­rent era of the chart. The duo pre­miered “Feel Like A Rock Star” at the ACM Awards in Vegas last Sun­day and the track has quickly become the most-played tune on coun­try radio. The song is set to become the sec­ond sin­gle to debut at No. 1 in 22 years – only Garth Brooks’ “More Than A Mem­ory” has man­aged the feat, and that was in 2007.