“Elvira” sounds even richer when the Oak Ridge Boys let Home Free take lead. The too-many-to-count harmonies hit like water from a firehose before the two groups begin trading lead on the song from Home Free’s Country Evolution album.

A music video shows the two bands joking around during a one-of-a-kind performance of the oft-covered song. The single reflects that energy, and the “newcomers” do well to match the Country Hall of Famers’ vocals.

“Eyes that look like heaven, lips like cherry wine / That girl can so not make my little light shine / I get a funny feelin' up and down my spine / Cause I know that my Elvira's mine,” Home Free and the Oaks sing, staying true to the original arrangement.

You know the words, and the song — a No. 1 hit for the Oak Ridge Boys back in 1981 — was long overdue for a remake. Tim Foust does a fine Richard Sterban … the whole room is impressed when he hits the famous: “Oom Poppa Oom Poppa Mow Mow / Giddy Up, Oom Poppa Oom Poppa Mow Mow.”

Home Free are best known for winning NBC’s The Sing-Off in 2013. They’ve now released three albums on Sony.

Why Fans Will Love it: Home Free's version puts a fun twist on a classic.

Key Lyrics: "Elvira, Elvira, my heart's on fire, for Elvira / Giddy Up, Oom Poppa Oom Poppa Mow Mow / Giddy Up, Oom Poppa Oom Poppa Mow Mow."

Did You Know?: “Country Evolution” includes a cappella covers of songs by Garth Brooks, Dolly Parton and the Eagles.

Listen to Home Free (Feat. Oak Ridge Boys), “Elvira”