"Can't Rely on You" is a song by English recording artist Paloma Faith, written by Faith and American singer and producer Pharrell Williams. The single, available for purchase from 23 February 2014, serves as the lead single from her third studio album, A Perfect Contradiction, which was released in early March.

It has received some radio airplay, and during the last week in January it joined BBC Radio 6 Music's rotation list on the 'B' list. She also performed it on The Graham Norton Show on 14 February 2014.

For her third studio album, Faith wanted to produce a more upbeat album, returning to her soul-girl roots. In May 2013, Faith met Pharrell Williams at the Metropolitan Museum of Art Met Ball in New York City, when Williams approached Faith singing her song, "New York". He then took her phone, entered his contact number and told her, "I'm ready to work." The pair went on to later write and record "Can't Rely on You" together in Miami.

"Can't Rely on You" is a funk-soul track, featuring looped funk beats and growly vocals. The single was produced by Pharrell Williams and mixes the trademark beats of Williams with the distinctive soulful vocals of Faith, bringing a grooving backdrop to the singer's soulful rebuke.

Critics were quick to draw comparisons to Robin Thicke's "Blurred Lines", which was also produced by Williams, due to its similar beat. However, Sam Lansky of Idolator insisted that this was not necessarily a bad thing, instead calling it an "improvement" on "Thicke's sticky falsetto and problematic lyrical content", describing it as "'Blurred Lines' with soulful female vocals, singing better lyrics."

Tim Chipping of Holy Moly gave a negative review, labelling the song as "a record that sounds like a thing Beyoncé would do (and then leave off the album)", going on to say: "It's impressive and everything. But it's not, you know, got a tune. Or a chorus." Chris DeVille writing for Stereogum was similarly negative, calling it a "post-"Blurred Lines" bluster" and later concluding, "Hopefully he’s saving his good stuff for Pusha or himself."

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