Wrigley is gearing up for Halloween with a limited-edition ‘trick or treat’ Starburst sharing bag.

The bag, available exclusively from Tesco now, contains a mix of apple, raspberry and orange-flavoured fruit chews (rsp: £1/165g).

Some are sweet and some sour, and consumer will not know which until they bite into it.

The brand’s TV ad - which stars Michael Bolton - will be aired in the run-up to Halloween to support the NPD.