Megan Fox and Machine Gun Kelly will be walking down the aisle in no time! A source tells ET that the couple are in the «final stages» of wedding planning and the celebration is set to be filled with plenty of punk rock glamour.«They want a dark, sexy, very punk rock and glam celebration. They're planning things together as one and looking forward to starting a new chapter together and looking forward to what the future brings and spending their lives together,» the source shared. «Their relationship is very intense, dark, romantic and sexy and that's how they want their wedding celebration to be.»While the couple have been pretty tight-lipped about their nuptials, in March, the 32-year-old singer told Ellen DeGeneres who he has in mind for the house band during their ceremony. «Which boy band am I going to know the most songs of? For sure, *NSYNC,» he told the host during a round of Burning Questions.