Lionel Richie sure gives the best advice. While catching up with E!'s Lilliana Vazquez and his American Idol co-judges Katy Perry and Luke Bryan, the "All Night Long" singer gave Perry, who is expecting her first child with fiancé Orlando Bloom, a little tidbit of parenting advice as they discussed the reality show's season 18 finale exclusively with E! News. "Get a helmet," he joked.