Warren's years with Take 6 were characterized by a flurry of appearances, performances, recordings, and travel. Take 6 performed many concerts and embarked upon several concert tours, typically to sold-out audiences, both in the United States and abroad. In 1988, Take 6 toured approximately 12 U.S. cities, opening for singer Andy Williams. In 1989, Take 6 toured 40 U.S. cities, opening for jazz legend Al Jarreau. In subsequent years, Take 6 headlined their own concerts and tours throughout the United States, the UK, Europe, and Japan. Take 6 also performed at a number of well-known events, venues, and jazz festivals, including Radio City Music Hall, Carnegie Hall, The Hollywood Bowl, The Special Olympics, The Monterey Jazz Festival, and The Playboy Jazz Festival. Occasionally Take 6 shared billing with other, popular contemporary-Christian recording artists, such as BeBe & CeCe Winans, the Winans, and Commissioned.