Tekashi 6ix9ine is wasting no time settling back into the life of a rap superstar following his early prison release ... he's spending tons of cash and getting offers for concerts. Sources close to Tekashi69 tell TMZ ... the rapper is throwing tons of money around on whips and bling, purchasing a fleet of luxury vehicles that includes an Aventador, McLaren, Rolls-Royce, Mercedes Benz G-Wagon and a Range Rover!!!