 In 2007 The Quebe Sisters performed with Warren Buffett on ukelele singing "Red River Valley" at the Berkshire-Hathaway Annual Shareholders Meeting in Omaha, Nebraska, at the invitation of the Justin Brands western footwear company.That year they also recorded their second album, "Timeless", which was recorded at Cash Cabin Studio in Hendersonville, Tennessee, where Johnny Cash and June Carter Cash made their later recordings.Invited by the Cash family to record there, the sisters capitalized on the opportunity to make their vocal debut album arranged and produced by Joey McKenzie.