"Los Angeles, November 2019. The skies are polluted. The world is addicted to oil," the maybe-Grimes hologram said at the start of the event.
"But we're here to offer a solution: The Cybertruck. The number one mode of transport for a cybergirl. The greatest evolution in vehicular fashion and function. I now present to you, my creator," she said before Musk entered the stage.
Fans were quick to point out that the hologram girl's leg tattoo appears to match Grimes'.
Grimes' tattoo artist posted the tattoo on Instagram back in 2017.
Grimes and Musk have been dating for years. One of their first public appearances together was at the Met Gala in 2017.
next slide will load in 15 secondsSkip AdSkip AdAt that time, people speculated that Grimes was wearing a choker meant to imitate the Tesla logo, but the couple denied it.
Grimes is currently promoting her forthcoming album, "Miss Anthropocene," which deals with themes including futurism and the rise of algorithms.