Celebrity
Fans are already gearing up for a "mother convention", with rumours claiming the two will be teaming up for a duet of a French classic.
The John Wick star has lost a few people very close to him, including his girlfriend Jennifer Syme and his friend River Phoenix.
The model announced in May that she’s expecting her first baby with husband Justin Bieber.
Last month, it was reported the legendary singer had big plans for her return to live performing, after being diagnosed with stiff-person syndrome.
The couple have been married since 2012, and are parents to four children.
The former glamour model and reality star made headlines last week when she spoke excitedly about a supposed new project with Netflix.
The 90210 and Charmed star died earlier this month, aged 53.
"Please stop worrying, everything is good," the 18-year-old wrote on Instagram, insisting his famous mum has "always been supportive of me".
The pair were briefly linked back in 2015.