Paul McCartney has opened up about reuniting with Ringo Starr in the studio.The former Beatles pair are working on a re-release of McCartney’s ‘A Beautiful Night’, which will accompany a re-release of McCartney’s 1997 album ‘Flaming Pie’.The release is coming as part of the Paul McCartney Archive Collection which also sees 32 bonus audio tracks and a 128-page book containing previously unpublished images by Linda McCartney and will be released on July 31.Starr’s contribution has now led to a new