"Groovy Grubworm" is a 1969 instrumental by American session musician Harlow Wilcox. The lead single for his album Groovy Grubworm and Other Golden Guitar Greats, the track became Wilcox's sole charting hit, peaking at #30 on the Billboard Hot 100 and #25 on the Cash Box Top 100. It also reached #1 on the RPM Country Tracks chart in Canada.

Chart performance Chart (1969–70)PeakpositionU.S. Billboard Hot Country Singles42U.S. Billboard Hot 10030U.S. Billboard Easy Listening18U.S. Cash Box Country Top 601U.S. Cash Box Top 10025Canadian RPM Country Tracks1Canadian RPM Top Singles20

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