Lilac is probably her 2nd best full album behind Modern Times.
Her music is just so good. It doesn't take much thinking as to why she's so popular....the literal 3-hit punch that is Lilac - Flu - Coin....whew.
And if any of y'all actually BOTHERED to listen to her discography, you can see that she dabbles in many different genres, sounds, etc. To think that she has a say and writes/produces many of her tracks makes me respect her alot.
IU also has a very lovely voice, put 2 and 2 together and you have yourself a very successful artist.