TV Lohan to Guest Host 'Chelsea Lately' Post Rehab By Krista Wick 3:07 PM PDT, July 29, 2013 Getty Images Lindsay Lohan hasn't completed her court-mandated rehab quite yet, but the 27-year-old actress has secured another post-treatment gig. On Monday, August 5, Lohan will demonstrate her comedy chops on Chelsea Lately, filling in one day for host Chelsea Handler on the E! show, which the network promises to be an "all-star event." RELATED - Lindsay Opens Up About Drug UseEarlier this month, Lohan signed on for a sit-down interview with Oprah Winfrey in addition to an 8-episode docuseries set to air August 18 on OWN. Chelsea Lately airs weeknights at 11:00pm on E!.