'Here's to 3 magic years of friendship': Lorde pays tribute to best friend Taylor Swift after singer organises 'the best birthday party' in New York with guests including Karlie Kloss

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Lorde marked her 20th birthday in a trendy New York restaurant on Monday, surrounded by family and friends.

And following the celebrations, the New Zealand-born singer took to social media to thank the party planner - her best friend Taylor Swift.

Sharing a series of photos from the night with fans on Instagram, the birthday girl pays tribute to the Shake It Off hitmaker, saying: 'Here's to our 3 magic years of best friendship and more moments like this'. 

'Here's to our 3 magic years of best friendship': Lorde took to Instagram on Monday after her 'best birthday party' to thank best friend Taylor Swift for organising the bash to help the New Zealand-born singer celebrate her 20th birthday

One photo shows Taylor kissing Lorde on the cheek as she pulls a stern pout for the cameras, which later turns to a laugh in a second shot.

Another shot shows Lorde is seen sipping her drink as she's kissed on the cheek by both Taylor and Victoria's Secret model Karlie Kloss, the Royals singer penned an emotional tribute to her pals.

'Had the best birthday party I've ever had tonight surrounded by my NYC family. All organised by Tay who is as she says "a mom with no kids". 

'I am ur (sic) kid and u (sic) love me so hard I could burst. 

'Here's to our 3 magic years of best friendship and more moments like this squished between angels,' she wrote. 

'More moments like this squished between angels': Another image from the party, shows Lorde sipping her drink as she's kissed on the cheek by both Taylor (L) and Karlie Kloss (R)

Party on! The birthday girl - who's real name is Ella Yelich-O'Connor - is also seen happily smiling and laughing as she continues to clutch at the red balloon

'Made my wish': The singer teased fans that she had made a wish when blowing out the candles but didn't elaborate further

Beaming beauty: The brunette beauty donned a black strapless top for the occasion but her smile was the shining feature in her ensemble as she beamed across the evening

The birthday girl - who's real name is Ella Yelich-O'Connor - is also seen happily smiling and laughing as she continues to clutch at the red balloon.

The brunette beauty, who excitedly marked leaving her teen years behind, donned a black strapless dress for the occasion but her smile was the shining feature in her ensemble as she beamed across the evening.

Posting a video of a chocolate cake being brought to the table, the 20-year-old is seen grinning broadly as the large party sings Happy Birthday in unison, using Ella instead of Lorde in the song.

The singer teased fans that she had made a wish when blowing out the candles but didn't elaborate further. 

The star-studded group, also including Lena Dunham, were spotted leaving at ZZ's Clam Bar together.

Party over: The star-studded group were spotted leaving at ZZ's Clam Bar together

Leggy ladies! Taylor (left) and Karlie (right) both put on leggy displays in killer high heels and outfits that showed a generous amount of their toned pins

Girls, girl, girls! Lena Dunham was also among the high-profile women at the party but opted for a more casual look for the evening

Earlier in the day, Lorde received an adoring birthday wish from her BFF Taylor Swift, who took the opportunity to recall their first meeting years ago.  

'Thank you for the music you make, the advice you give, the thoughts you provoke, and the way you've made my life more beautiful since the first day we met up in New York and ate burgers on a park bench and got attacked by squirrels,' the 26-year-old shared via Instagram on Tuesday.

'I. Love. You. So. Much. Ella. (sic)' Taylor concluded her post.

The birthday dedication was accompanied by a photo of a watercolour card, which appeared to be homemade by the Blank Space hitmaker herself.

Lorde, who was born in New Zealand, has spent a great deal of time in the US in recent months, where she is believed to be working on new music. 

'Thank you for the music you make': Taylor shared a sweet birthday message to celebrate her BFF's big day on Instagram

'I love you Ella': The Shake It Off hitmaker had made a watercolour card with Lorde's age and real name on a white canvas, surrounded by gold stars

Cute: Taylor recalled meeting the Royals singer for the first time, writing: 'You've made my life more beautiful since the first day we met up in New York and ate burgers on a park bench'

And on Monday, the singer-songwriter announced new details on the follow up album to Pure Heroine.

Reflecting on her teenage years and early career in a Facebook post addressed to her fans, the Royals hitmaker shared details of her upcoming record.

She promises includes the 'best' lyrics she's ever written, as she recalled the past 'colossal' year that inspired the songs on the new album.

'I want nothing more than to spill my guts RIGHT NOW about the whole thing.' 

New music: The  Grammy-winning artist told fans the tracks on her new album include the 'best' lyrics she's ever written

'Colossal year': The Royals hitmaker reflected on her huge year, during which she says she experienced heartbreak and independence

'I want you to see the album cover, pore over the lyrics (the best I've written in my life), touch the merch, experience the live show,' she continued.

The ARIA winner went on to tell her fans to 'hold on' while she continues to work on the record to 'make it as good as it can be'.

Giving away no details about the exact release date, the singer did mention: 'The big day is not tomorrow, or even next month realistically, but soon. I know you understand.'

'Soon': Urging fans to be patient as she perfects the new album, Lorde revealed the release date will be soon

And as the brunette star concluded her post, the brunette star was no longer a teenager, with the clock striking midnight on her 20th birthday.

'Oh my god it's midnight now!!! I'm 20 f***!!!!!' she wrote enthusiastically.

'What I'm trying to say is: this is a special birthday. The party is about to start. I am about to show you the new world.' 

'The party is about to start': The songstress ended her post by telling her fans: 'I am about to show you the new world'