The 26-year-old's comments were met with a chorus of boos while performing at Northwestern University.
Musk and Heard dated briefly but broke things off in 2017.
Johnny Depp's legal battle against Amber Heard is winding down, as the jury begins deliberations after each side's closing arguments.
Johnny Depp's lawyer, Camille Vasquez, presents her rebuttal in the closing arguments of Depp's ongoing trial against Amber Heard.
Amber Heard's lawyers, Ben Rottenborn and Elaine Bredehoft, give closing arguments in Johnny Depp's defamation case against Heard.
Johnny Depp's counsel, Ben Chew and Camille Vasquez, give their closing arguments to the jury in the actor's trial against Amber Heard.
Amber Heard returns to the stand in Johnny Depp’s ongoing defamation trial against her.
Amber Heard tearfully takes the stand again in Johnny Depp's ongoing defamation trial against her.
The actress claimed some of the trauma includes insults from people who tell her they 'want to put my baby in the microwave.'
Johnny Depp is cross-examined again and denies claims he tried to get Amber Heard fired from the 'Aquaman' sequel.
Johnny Depp testifies in his defamation case against ex-wife Amber Heard. The actor discusses Kate Moss and Heard's 'Aquaman' audition.
Morgan Tremaine, a former employee of TMZ, took the witness stand on day 22 of Johnny Depp's defamation trial against Amber Heard.
The embattled actor also said he misses the finger tip he lost during an alleged altercation with Heard.
Kate Moss testifies in Johnny Depp's defamation trial against his ex, Amber Heard.
