The hashtag that @iamtovelo used earlier today, #wolfcousins, is the name of a production team headed by Max Martin and Shellback.
Interview by Tove Lo
Billboard Tove Lo Interview:
Have you worked with Martin before?
I'm part of his songwriting team – a group that him and Shellback have signed called Wolf Cousins. It's six different producers and me as the top-line writer. So maybe Martin and Shellback will write a song and produce it together with one of these new young writers, which obviously gives us a huge chance to be on a bigger project that we would never get a chance to be on otherwise. And it's also kind of like mentoring: We're all sitting together in this big studio complex in Stockholm, which is awesome, and they're just working their asses off. That's pretty recent – it just started end of last year.
Also Minna Fagerstedt an A&R rep for Warner posted this on her IG today
the caption read: A long-awaited Hilary ran her first day in the studio with these wonderful two today Looking forward to an exciting week! #hilaryduff #tovelo if you look at her IG followers she's following EVERYONE from Wolf Cousins camp and notice she says "looking forward to a wonderful week"
anyways I'm excited!!!!