In season one, Heigl used her real hair to play the role of Tully, meaning she had to dye it dark brown throughout filming. "They used her own hair for the majority of the season, except when they went into the '80s," says Koppes. In season two, however, wigs were introduced — four in total, one for each decade, in fact.
This was helpful in more ways than just one: not only did it maintain the integrity of Heigl's real hair, but it was a big time saver. "She had so many different looks — sometimes we would go through three different looks in one day — and it was really easy just to pop one of the wigs off and put another one on," says Koppes.
As someone who worked in a salon in the '80s, Koppes used her own experience to come up with Tully's look. When she signed on to work on season two, she instantly knew she wanted to incorporate one popular hair accessory trend from the time: a banana clip. "We got that in when she was in one of the clubs in her party look because everybody had a banana clip in the '80s," says Koppes. That look ended up being one of her favourites from the entire season.
In the '90s, we see Tully in an inverted bob haircut. "That was very sleek and iconic for the '90s,' she says. And in the decade following, her hair is grown out to her curly lob. No matter how many times Tully's hairstyle changed, one thing had to stay constant. "She's that woman that is always done, no matter what," says Koppes. "Even when she's broken down, she still looks put together."