Summer is almost over, so don't miss your chance for another outdoor concert at the Western Colorado Botanical Gardens Friday, Sept. 21.Gotta Beez - formerly known as the Gotta Be Girls - will perform a benefit concert for the botanical gardens at its amphitheatre near the Colorado River.The all-girl band from Montrose is known for its tight blend of vocals, beautiful harmonies and original songs. Gotta Beez includes Glenda Fletchall on vocals, guitar and mandolin; Karen Mercer on vocals, guitar, mandolin and rhythm; Barb Bernhardt playing banjo, bass and vocals; and Margaret Freeman on percussion and vocals.Fletchall and Mercer began playing folk music as a duo 20 years ago. Mercer took a break from performing to raise her daughter, then joined back up with Fletchall about seven years ago. Bernhardt and Freeman joined the band, adding banjo and percussion and their own harmonious voices.Fletchall said many of the songs she writes come to her while she is sleeping. She'll wake up in the middle of the night while listening to a song she's never heard before. So she gets up and writes it down.Each of the women are "top-notch singer-songwriters," according to Montrose music promoter Dave Bowman. In its repertoire, the group encompasses not just folk, but also blues, bluegrass, swing and sometimes sixties pop.Gotta Beez performed in May at the Radio Room before an appreciative crowd who enjoyed the music, as well as the group's banter between songs and its rapport with the audience.If you like exquisite harmony, a range of instruments, and original songs sung by musicians who are obviously having a good time, this is a concert not to miss. Beer from Kannah Creek, and wine from Grande River Vineyards will be available for purchase, as well as water.Concert-goers are welcomed to bring a picnic, and encouraged to bring a lawn chair or blanket for the ground.