'Hero' Singer and amazing musician @Faouzia bravely tries Cosmo's new TikTok Voice Challenge! She tackles six super hard TikTok voice challenges - warm ups, runs, high notes and harmonies - and nails them! Katy Perry, Colbie Caillat, Lady Gaga, Kristen Chenoweth... We're not sure which was the hardest. Which one was your fave?

Love Cosmo? Then come join our ~ elite ~ members-only crew. Sign up for Cosmo Unlocked: cosmopolitan.com/joinus