NOW Play up the shag's rock and roll vibe with choppy layers like Emily Browning's, but "keep them on the straight side," suggests hairstylist Adir Abergel. "You don't want too much body."
THEN Jennifer Aniston's famous style from her days on Friends in 1995.
INSIDER TIP Try not to overstyle it, adds Mancuso: "A shag is best when there's a lived-in, natural feel to it."
Try on Emily Browning's shag cut! Read MoreLess