Topanga Is on Fire 11/2/2007 1:35 PM PDT BY TMZ STAFF The 26-year-old former child star is all growed up -- and out! World, meet Danielle!Danielle used to date Lance Bass, and recently lost over 27 lbs. on NutriSystem. She's dropped a lot of dead weight! Related Article Katarina Witt: 'Memba Her?!