Complex sentence: Houston performed two special live concerts, billed as "Classic Whitney Live from Washington, D.C." at the historic DAR Constitution Hall in Washington D.C. on October 3rd and 5th, 1997.
Split into simpler sentences: Houston performed two special live concerts, billed as "Classic Whitney Live from Washington, D.C." at the historic DAR Constitution Hall in Washington D.C. in October of 1997. The concerts were held at historic DAR Constitution Hall in Washington D.C. on October 3 and 5,1997.