Best Song of Summer 2015: Kenny Chesney vs. Kelsea Ballerini

Just eight songs remain in the quest to find the Best Song of Summer 2015. Kenny Chesney and Kelsea Ballerini's fans stepped up big over the last week, pushing both to the second round. Now, they'll square off in a grueling Quarterfinal round to face either Sam Hunt or LoCash.

Chesney's "American Kids" topped Miranda Lambert's "Little Red Wagon" in convincing fashion. The 2014 hit took over two-thirds of the vote, coasting easily to Round 2. Perhaps it's no surprise this song moves on as the singer is one of the ultimate singers of summer songs.

Ballerini is one of two newcomers to move to the second round. Her hit "Love Me Like You Mean It" became the first No. 1 from a female solo artist in nearly three years, knocking Frankie Ballard's "Young & Crazy" from the contest. The upbeat love song is still playing strong at radio, and it's still a jam to roll the windows down to.

Pick your favorite and vote up to once every hour until the polls close at 11:59PM CT on July 28, 2015. The ultimate Best Song of Summer winner will be named on August 12.