United Kingdom, April 6 -- Dua Lipa and Callum Turner reportedly plan to have an intimate wedding ceremony.

The 30-year-old pop star and Callum, 36, announced their engagement last year, and they're now busy planning their big day.

A source told The Sun newspaper's Bizarre column: "The plans are in full swing for Dua and Callum's wedding but it's all being kept hush-hush.

"It is happening this summer - she will be a married woman by the time she turns 31 in August.

"They want to keep it to their nearest and dearest so it's not going to be a huge, showy occasion."

Dua is friends with the likes of Sir Elton John, Olivia Dean and Mark Ronson, but their wedding is unlikely to be a star-studded event.

The insider explained: "All of their...