Madison Beer turns heads in a blue rhinestone feathered Carnival costume as she and Hailey Bieber ring in her 21st birthday with raucous bash

Madison Beer celebrated her 21st birthday in style at celeb hotspot Delilah, Los Angeles on Thursday.

The singer ensured all eyes were on her as she arrived in a blue bejewelled carnival costume, which showcased her tanned and toned physique.

Madison, who invited a slew of stars to her lavish birthday bash hosted by clothing brand Abyss By Abby, partied the night away with Hailey Bieber, 23.

Madison looked every inch the birthday girl in her skimpy Augusto Manzaneres outfit from stylist Kris Fe, which comprised of a rhinestone bra.

The songstress showed off her ample assets in the plunging number, which had a criss cross design going over her slender waist and feathered straps.

Madison opted to shun the cardinal legs-or-cleavage rule as she flaunted her leggy frame in the perilously short fringed miniskirt, which was adorned with feathers that trailed down to the floor.

Madison added a boost to her height with Rene Caovilla silver strappy heels and finished off her blue feathered look with fingerless gloves.

She wore her brunette locks in glossy curls and enhanced her sun-kissed tan with a full face of make-up.

Hailey also put on a leggy display in a blue suit co-ord which she teamed with thigh-high black suede boots.

The pair are pals after Madison soared to fame when Hailey’s husband Justin posted a YouTube link to Twitter of her belting out At Last aged 13.

Madison has won legions of fans since she released her first music in 2013 and currently boasts an impressive 14million followers on Instagram.\

The signer shot to fame at the age of 13 when Justin Bieber posted a YouTube link to Twitter of her belting out At Last, a 1941 number that was was most famously sung by Etta James on her 1960 debut album At Last!.

Justin, who at that point was already a major celebrity, wrote: ‘wow. 13 years old! she can sing. great job. #futurestar’.

Wow: Model Sahara Ray is seen arriving at Madison’s birthday bash with a male pal

Madison explained to Teen Vogue back in 2017 that Justin has, in the intervening time, ‘become a good friend’ of hers.

She said: ‘I think we’ve been able to connect because we were both discovered on YouTube and have a common understanding just from that.’

It took until 2018 for Beer to get around to releasing her first EP, As She Pleases.

On November 9, 2018, she released Hurts Like Hell featuring Offset and this past May released Dear Society, a single from her yet-to-be-released debut album.