Roberta Linn (born April 30, 1928 in Gravity, Iowa) is an American singer and entertainer. From 1949 to 1954, she sang with the Lawrence Welk group. She was the Lawrence Welk Show first TV Champagne Lady. Linn is also closely associated with the Rat Pack and the Las Vegas Strip, where she was a regular solo performer beginning in 1955 at The New Frontier and then in 1961 with her husband Freddie Bell and the Bellboys at the Sahara Hotel. Linn continued performing in Las Vegas for 18 straight years at a variety of iconic hotels including the Stardust, Riviera, Dunes, Caesers, Desert Inn and the Sands at their Great American Songbook musical zenith in the 50s and 60s.