Many rockstars are sharing their prayers and condolences after another shocking concert attack, this time in Las Vegas at a country music festival. At least 58 people were killed and more than 515 were injured in the deadliest mass shooting in modern US history. Take a look at some of the reactions: https://www.instagram.com/p/BZv-9U7AY9B/ https://www.instagram.com/p/BZv2Cr_gmBB/ https://www.instagram.com/p/BZwOEmlgv_F/ https://www.instagram.com/p/BZwTrh4H5y4/ https://www.instagram.com/p/BZwESklhuYY/ https://www.instagram.com/p/BZwKXOijM42/ https://www.instagram.com/p/BZvhh11guTM/ https://twitter.com/NikkiSixx/status/914890519033004033 https://twitter.com/genesimmons/status/914914868301520896