"So Messed Up" is the debut international single by Croatian pop singer La Lana. It was released on 31 January 2020 by Warner Music. It was written and produced by Damon Sharpe and Eric Sanicola, with additional writing from Jazelle Rodriguez and Omar Tavarez. The song is the artist's first one in English since 2012's "Bad Boys", which is featured on her fourth studio album Pobjede i porazi. The song peaked at number two on Croatian Airplay Chart. On 14 May, a remix featuring American rapper Yung Baby Tate was released.

Eric Sanicola is an American music producer and songwriter credited on numerous Gold and Platinum albums, including various Billboard magazine charting singles.