The Apples in Stereo, styled The Apples in stereo, are an American indie rock band associated with The Elephant Six Collective, a group of bands also including Neutral Milk Hotel and The Olivia Tremor Control. The band is largely a product of lead vocalist/guitarist Robert Schneider, who writes the majority of the band's music and lyrics. Currently, The Apples in Stereo also includes longstanding members John Hill (rhythm guitar) and Eric Allen (bass), as well as new members John Dufilho (drums) and John Ferguson (keyboards). The band's sound draws strong comparisons to the psychedelic rock of The Beatles and The Beach Boys during the 1960s.
The band is well known for their appearance in a Powerpuff Girls-esque music video performing the song "Signal In The Sky (Let's Go)". It aired immediately after the show's seventh episode of season 4, "Superfriends".