At 48:30 Diane Warren says in her CMW (Canadian Music Week) interview, "When I was working with Adele, she was like I was sitting there and she was almost like you know reincarnating Dusty Springfield to me"
Diane also rehashed some older information she talked about before although she elaborated upon it very slightly. Starting at 3:48 she says that she has worked on multiple songs with Adele. She also says that its difficult for Adele to leave the studio because she is so famous! They also worked in London which is something different for Diane Warren, as well as her doing co-writing instead of just handing a song over to an artist.
Anyways, Adele emulating Dusty Springfield? Is your fave ready?