Rebel Wilson treats her adorable grandmother to a surprise musical performance

Rebel Wilson treats her adorable grandmother to a surprise musical performance on her 90th birthday

Rebel Wilson has been living the high life as a Hollywood A-lister for some years.

So when it came time to surprise her grandmother for her 90th birthday on Sunday, she sure didn’t disappoint.

The 40-year-old Pitch Perfect star recruited Australian theatre star Lucy Durack to perform a special rendition of Barbra Streisand’s 1981 hit song Memory.

Scroll down for video

Backyard surprise! Australian actress Rebel Wilson (left) treated her grandmother to a performance by musical theatre star Lucy Durack (right) for her 90th birthday on Sunday

Rebel’s family and friends gathered for the milestone celebration which was hosted at her childhood home in Castle Hill, Sydney.

Dressed in a pink sweater, and black trousers, Rebel looked every inch the proud granddaughter as she played MC for the special occasion. 

Meanwhile, her grandmother was dressed in a fuchsia sweater and light pink scarf. 

She accessorised her look with a glittering tiara and a pearl bracelet to mark the special occasion. 

Stunning: Meanwhile, her grandmother was dressed in a fuchsia sweater and light pink scarf. She accessorised her look with a glittering tiara and a pearl bracelet to mark the special occasion

Stunning: Meanwhile, her grandmother was dressed in a fuchsia sweater and light pink scarf. She accessorised her look with a glittering tiara and a pearl bracelet to mark the special occasion

Treating her fans to a glimpse of the celebrations, the Bridesmaids actress shared photos to her Instagram account.

‘I MC’d and the lovely and mega talented @lucydurack came and sang for my Grandma’s 90th in Mum’s backyard!’ she wrote.

‘There were lots of happy tears, such a special day!’ Rebel continued. 

Celebrations! Rebel's family and friends gathered for the milestone celebration which was hosted at her childhood home in Castle Hill, Sydney

Celebrations! Rebel’s family and friends gathered for the milestone celebration which was hosted at her childhood home in Castle Hill, Sydney

Yummy: Guests were treated to an array of desserts including homemade cupcakes, caramel slices and macarons made by Rebel's mother, Sue Bownds

Yummy: Guests were treated to an array of desserts including homemade cupcakes, caramel slices and macarons made by Rebel’s mother, Sue Bownds

Guests were treated to an array of scrumptious desserts on the day.

They included homemade cupcakes, caramel slices and macarons made by Rebel’s mother, Sue Bownds.

The LA based actress has temporarily relocated back to Sydney during the COVID-19 pandemic. 

Life Down Under! The LA based actress has temporarily relocated back to Sydney during the COVID-19 pandemic

Life Down Under! The LA based actress has temporarily relocated back to Sydney during the COVID-19 pandemic