The SpaceX CEO also promised WiFi and a little oven for the next astronauts.
The SpaceX CEO has also donated US$50m to support the St Jude Children's Hospital.
They left the Earth and now have safely returned to it.
An introductory video appears to criticise certain billionaire space enthusiasts.
The mission has so far raised over US$350,000 for St Jude Children's Hospital
The astronauts will hurtle around Earth at 27,400km/h for three days.
Those on board will spend up to three days travelling at 27,400 km/h.
The latest barb comes just a day after Musk joked about Bezos suing death.
Expert says cockpit warnings which took place should "scare the shit out of you".