She attended the University of Southern California.
She has hosted several television shows and has been involved in acting and modeling.
She is the daughter of Phil Collins and his second wife Jill Tavelman. She is the younger half-sister of Simon Collins and Joely Collins, who are Phil Collins's children with his first wife, Andrea Collins; and older half-sister of Nicholas and Matthew, Phil's children with his third wife. Simon is a Canadian musician and Joely is a Canadian actress. She is the granddaughter of June Collins and niece of Carole Collins and Clive Collins.
She auditioned for the role of "Snow White" in Snow White and the Huntsman (2012) but lost to Kristen Stewart. She later replaced Saoirse Ronan as "Snow White" in the film Mirror Mirror (2012).
She was originally cast in Evil Dead (2013) but after dropping out due to scheduling conflicts, the role went to Jane Levy.
She was ranked #4 in People Magazine's 2012 World's 'Most Beautiful' Women.
Her father's Academy Award-winning song "You'll Be In My Heart" from the animated film Tarzan (1999) was written for her.
Maxim named her one of their "Hottest Daughters of Rock Stars" in 2009.
She won a 'Pandora Breakthrough Artist Award' at Glamour's Women of The Year Awards 2012.
She has done journalistic work for a variety of media outlets, including Nickelodeon and Teen Vogue.
She attended the same high school as Beverly Hills, 90210 (1990) star Tori Spelling, and went on to guest star on the 90210 (2008) reboot.
She enjoys traveling and while in school, often visited places she learned about to further her education.
She designed accessories including ballet flats named after her grandmother, Jane Hale, in support of a charity providing low-cost counseling in 2008.
One of her first auditions was for Twilight (2008). She auditioned for "Bella Swan", but Kristen Stewart got the role.
She loves old antiques and anything vintage and also collects them.
Her father, the famous pop star Phil Collins was born in London as the son of Greville Philip Austin Collins, an insurance agent, and June Collins (born Winifred Strange), a talent agent. Lily's maternal grandfather, Jack Tavelman, was born in Winnipeg, Manitoba, Canada, to Jewish immigrants from Russia. Lily's maternal grandmother, Billie Jane (Shoaff), was American-born, from a family from the Southern United States, and had English, and a smaller amount of German, ancestry.
She is great friends with her The Mortal Instruments: City of Bones (2013) co-stars, Kevin Zegers and Jamie Campbell Bower.
In her book Unfiltered: No Shame, No Regrets, Just Me, she revealed that as a teenager she suffered from an eating disorder and wants to open up a conversation which affects women and men around the world.
Matt Bomer honored his friend and The Last Tycoon (2016) co-star Collins with the Lacoste Spotlight Award at the 2017 Costume Designers Guild Awards.
She is an outspoken anti-bullying advocate and became anti-bullying organization Bystander Revolution's first Ambassador in 2014.
The eating disorders recovery organization Project HEAL honored Collins and writer/director Marti Noxon for their work on the film To the Bone (2017).
She was featured at We Day Seattle 2015 as Bystander Revolution's Ambassador and delivered a speech about the power of consistent, simple actions to affect change and shift the culture of bullying toward kindness.
She was considered for the role of Gwen Stacy in The Amazing Spider-Man (2012). The role eventually went to Emma Stone.
In the year of her birth (1989), Lily's dad Phil Collins had two number one hits, namely, "Two Hearts" and "Another Day in Paradise".
Longtime friend of actor Eddie Redmayne.
She auditioned for the title role in Carrie (2013). The part eventually went to Chloe Grace Moretz.