Conversation so far:
Did Lorde win any awards for her work?
Lorde's accolades include two Grammy Awards, two Brit Awards and a Golden Globe nomination.
What is Lorde's last popular album?
Lorde's album, Melodrama, was released in June 2017 and received widespread acclaim
What is the name of Lorde's recording label?
Lorde's album, Melodrama, was released through Universal, Lava and Republic Records.
Did Lorde perform songs from the album Melodrama on Saturday Night Live?
Lorde performed Liability alongside Green Light from the album Melodrama, for the first time on 12 March 2017 episode of Saturday Night Live.

Question: What was the name of her second album's debut single?
Self-contained rewrite: What was the name of Lorde's second album's debut single?