Miley Cyrus gushed about her younger sister Noah ahead of her performance at the iHeartRadio Music Awards on Sunday (05.03.17).

Noah Cyrus at the iHeartRadio Music Awards

Noah Cyrus at the iHeartRadio Music Awards

The 24-year-old musician was "really excited" for her 17-year-old sibling to take to the stage and perform her single 'Make Me (Cry)' at the music extravaganza, which took place at The Forum in Inglewood, California, over the weekend, and the blonde beauty proved her support to Noah by wearing a sign with "I Love Noah Cyrus" emblazoned across it as she introduced the act.

Speaking at the bash, the 'Wrecking Ball' hitmaker said: "I am really excited. This next performer is, without a doubt, the coolest person I know. Her voice is amazing, her songwriting is beautiful and relatable."

And 'The Last Song' actress is eager for the brunette beauty to show the "whole world" her "vision" because she believes 2017 will see her sister's career take off.

Miley continued: "She knows who she is as an artist and I can't wait for the whole world to get a load of her vision. She's who I want to be when I grow up, and that's saying a lot, because she's younger than me. Get ready, because 2017 is about to be Noah's year."

During Noah's gig she was joined by Labrinth to perform their 2016 single, which features on her debut album 'NC - 17'.

Meanwhile Noah - who is the daughter of 'Achy Breaky Heart' singer and songwriter Billy Ray Cyrus - has vowed to work "really hard" to make "great music" this year, although she has been working hard on her career for the past two years.

Speaking previously, she said: "I want to get my album out. I want to work really hard and make great music. I'm excited to have people hear what I've been working on for the past two years.

"I'm having the greatest time writing songs right now. I'm getting to meet other writers and am making friends out of it. It's all coming together really well."