Machine Gun Kelly has announced details of a massive world tour behind his new album ‘Mainstream Sellout’ – get tickets here and see the dates and support acts below.The rapper-turned-pop-punk star’s new record is due out this Friday (March 25) following on from a string of collaborative singles – ‘Ay’ with Lil Wayne, ‘Emo Girl’ with Willow Smith and ‘maybe’ ft. Bring Me The Horizon.At the start of June, Kelly will begin the North American leg of the ‘Mainstream Sellout’ tour, which will see him supported by Avril Lavigne, Travis Barker, WILLOW, PVRIS and more.A UK and European tour then begins in September, running through to October and featuring a London date at Wembley Arena.Tickets for all dates go on sale on Friday (March 25) at 10am local time.