SOCIAL MEDIATikTokViral Challenges UPDATE: Warning Issued Over Sexy TikTok ‘Silhouette Challenge’ by Skyler Romero February 5, 2021 by Skyler Romero February 5, 2021 The TikTok “silhouette challenge” has users taking to the app to post steamy videos. Find out where the challenge came from here. 0 FacebookTwitterPinterestEmail