A source previously told PEOPLE that Perry's stress over the reception of '143' had put a strain on their relationship

Pop superstar Katy Perry and actor Orlando Bloom are reportedly facing significant turbulence in their long-standing relationship, with

After rumors emerged this week that Katy Perry may be headed for splitsville with fiancé Orlando Bloom, the singer is adding fuel to the fire. While introducing her song “I’m Still Breathing” at a recent tour stop in Sydney,