The Baby of Cambridge may not be born yet, but he (or she) has already received his (or her) first musical dedication – a lullaby.

Paul Mealor, who was personally chosen by Their Royal Highnesses, The Duke and Duchess of Cambridge to compose a piece for their wedding in 2011 has written a lullaby -Sleep On' for their baby due in July. -Sleep On' will be sung by New Zealand classical superstar, Hayley Westenra on her new album of lullabies -Hushabye' released in Australia by ABC for Kids through Universal Music on June 14th. -Hushabye' will be Hayley's sixth international release.

Hayley, who now lives in London, released her debut international album in 2003; -PURE' went straight to No. 8 in the UK pop charts and No. 1 in the classical charts making her the fastest-selling debut classical artist of all time and an international superstar at 16 years of age. -PURE' was the best selling album of all time in New Zealand spending 18 weeks in the pop charts and becoming 12 times Platinum. It also went Platinum in Australia.

Hayley has performed regularly to royalty the world over, and has dedicated -Hushabye' to the imminent arrival of the Royal Baby and will send the Royal Couple a copy of the album to help them through any sleepless nights with their new arrival.

Embraced by Hayley's beautiful tones, -Hushabye' is a careful selection of songs to calm and soothe listeners of all ages. Her voice is gently complimented by a carefully considered orchestration, with acoustic guitar, piano, flute and warm strings, creating an atmosphere of peace and tranquility. Listeners can expect bedtime favourites such as Hushabye Mountain and Twinkle Twinkle, alongside timeless classics that reach beyond the realm of lullabies, like Dream A Little Dream Of Me and All Through The Night.

To listen to Hayley's version of the classic Twinkle Twinkle click here.

Hayley – who has sold over four million albums in her career – is known for her passion for children's wellbeing. As the second youngest ever ambassador for UNICEF, she raises awareness of the desperate situations faced by innumerable children around the world. She has supported several educational projects, such as providing bikes for children in Ghana, enabling them to attend school and find a better future.

-Hushabye' is released June 14 via ABC for Kids through Universal Music Australia

Hushabye Track Listing

Pretty Little Horses
Hushabye Mountain
Dream A Little Dream
Sleep On
Twinkle Twinkle
Go To Sleep You Little Baby
Brahms Lullaby
Goodnight My Angel
All Through The Night
Baby Of Mine
Hine E Hine
When At Night
Stay Awake