Article continues below advertisementSydney Sweeney let one rip while filming Euphoria.The actress, 28, was caught farting on a hot mic, as seen in a viral video posted to Instagram on Monday, April 27.Sweeney donned a red checker print crop top and matching shorts as she sat on her hands and knees on a lounge chair. A loud noise could be heard coming from behind her, prompting the star to turn around and look at her backside.