United Kingdom, Sept. 5 -- Jessie J is "feeling really positive" amid her ongoing health battle.

The 37-year-old pop star underwent surgery for early-stage breast cancer in June, but DJ Scott Mills has revealed that Jessie plans to attend Radio 2 In The Park in Essex, south-east England, over the weekend.

Scott told The Sun newspaper's Bizarre column: "Jessie was listening to my show, and she was like, 'Thanks for playing the new song, I'll see you in Chelmsford'.

"She's all right and she is feeling really positive."

Jessie previously postponed her UK tour due to her health troubles. But Scott is pleased that she'll be attending the upcoming event.

He said: "She just needs to focus on her health and then feel ready for the tour. But ...