Jimmy Robbins Rules Country Songwriters Chart, Thanks to Hits by Maren Morris & Kelsea Ballerini

Robbins has earned 21 career entries on the Hot Country Songs chart as a writer, three of which have hit No. 1: Blake Shelton's "Sure Be Cool If You Did" (his first songwriting credit on the survey), Keith Urban and Miranda Lambert's "We Were Us," both in 2013, and Jake Owen's "Beachin'," in 2014. Nine of Robbins' 21 entries have reached the top 10.

On Country Airplay, Robbins also has 21 songwriting entries, including eight No. 1s, with "The Bones" marking his latest, as it leads the list for a second week. It's the first song by a woman and no accompanying acts to reign for multiple weeks in over seven years, since Carrie Underwood's "Blown Away" in 2012.

The weekly Country Songwriters and Country Producers charts are based on total points accrued by a songwriter and producer, respectively, for each attributed song that appears on the Hot Country Songs chart; As with Billboard's yearly recaps, multiple writers or producers split points for each song equally (and the dividing of points will lead to occasional ties on rankings).

Check out this week's full Country Songwriters and Country Producers charts, in addition to the other full genre rankings, at this link.