Popsugar Celebrity Kelly Clarkson Simon Cowell's Hollywood Star Ceremony August 2018 Kelly Clarkson and Many More Stars Support Simon Cowell at His Hollywood Star Ceremony 24 August 2018 by Kelsie Gibson First Published: 23 August 2018 View On One Page Photo 11 of 25 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 11 Rob Stringer, Simon Cowell, Kelly Clarkson, and Leron Gruber Pictured: Simon Cowell Previous Next Start Slideshow Kelly ClarksonSimon Cowell