Singer Taylor Swift reportedly likes to keep `mementos` from her previous relationships.

According to a source, the 25-year-old keeps an item belonging to each of her former boyfriends to remember the relationship and help her in writing songs, reports hollywoodlife.com.

`Taylor collects and keeps mementos from all of her relationships. She has a bracelet and a scarf from Jake Gyllenhaal, guitar picks of John Mayer's, a comfy T-shirt of Taylor Lautner's, a tie of Conor Kennedy's, and of course Harry (Styles') necklace. It's like she has a trophy case of her past loves,` the source said.

`She uses the mementos to help her remember her relationships and write emotional lyrics,` the source added.