My biggest fan! Demi Lovato arrives for radio appearance hand-in-hand with boyfriend Wilmer Valderrama as she gears up for tour with Nick Jonas

Longtime friends Demi Lovato and Nick Jonas announced on Monday - to fans' delight - that they would be hitting the road together for their upcoming Future Now tour.

And the 23-year-old seemed to be having a blast as she hit SiriusXM Studios in New York City with her ex Joe Jonas' little brother Nick, 23, to share the news.

She was spotted looking smitten as she arrived at the studios walking hand-in-hand with current boyfriend Wilmer Valderrama, 35.

Smitten: Demi Lovato sported a smile while walking hand-in-hand with current boyfriend Wilmer Valderrama in New York on Monday 

Pals: Demi hit SiriusXM Studios in with longtime pal Nick Jonas, the younger brother of her ex Joe

Demi looked chic in a form-fitting, low-cut black crop top, which she paired with a high-waisted, black and white striped skirt.

The flattering, patterned skirt was embellished with large, black buttons and she coupled the look with black pumps.

She covered up with a large, black coat, and at times hid her eyes behind a pair of black sunglasses.

The Confident singer wore her short, raven tresses styled in loose waves, and kept her make-up natural for the appearance, showing off a soft, pink lipstick and subtle eyeliner.

Chic: The Confident singer showed off her fashion credentials in a fitted, black crop top and black and white patterned skirt 

By her side: The songstress brought her beloved pup Batman with her as she headed to SiriusXM Studios on Monday

In addition to her boyfriend Wilmer, the star was joined by her beloved dog Batman, who she was spotted cuddling with before her interview.

Meanwhile, her actor boyfriend Wilmer looked stylish for the outing, donning a fitted, grey plaid button down, worn underneath a grey pea coat.

He coupled the look with a pair of distressed dark wash jeans, worn cuffed at the ankles and with grey boots.

Cuddling: The raven-haired beauty got in a bit of a cuddle session with her four-legged friend before her interview with pal Nick

Suave: Demi's boyfriend Wilmer looked chic as well, with the From Dusk Til Dawn: The Series star sporting a fitted button down under a grey pea coat with distressed jeans and grey boots

The From Dusk Til Dawn: The Series star showed off a smile as he was spotted walking his girlfriend to the radio studio.

She was joined there by Nick, who sported a textured black and grey jacket, which coordinated with a pair of fitted trousers in the same print.

The Levels singer coupled those with a fitted black T-shirt, and finished off the stylish look with a pair of shiny, black oxfords.

Putting on their game faces: Both Nick and Demi shared this silly shot to social media ahead of answering fan questions at the radio station on Monday

In the past: Demi previously dated Nick's older brother Joe, after meeting him while starring in the 2007 Disney Channel Original Movie Camp Rock (pictured in 2010)

Demi had previously dated Nick's older brother Joe, 26, after they had met while starring in 2007 Disney Channel Original Movie Camp Rock - which also starred Nick and oldest brother Kevin.  

While posing on the carpet, Demi and Nick pulled silly faces in a snap they both later shared to their social media accounts, advising fans to 'Follow along and ask questions.'

The duo - who also partner, along with music executive Phil McIntyre, on Safehouse Records - looked to be having a blast once they sat down at the computer to answer said questions.

Having a blast: Demi and Nick could be seen laughing and smiling as they went through questions from fans after announcing their upcoming tour

The duo - who also partner, along with music executive Phil McIntyre, on Safehouse Records - pulled silly faces as they goofed around at SiriusXM Studios

They could be seen pulling silly faces, showing off big grins, and bursting into laughter as they both huddled over the laptop.

Nick released his self-titled album this past November, while Demi's Confident just dropped on October 16.

Their upcoming tour - Future Now: The Tour - kicks off on June 24, first stopping in Sunrise, Florida, with over 40 stops to follow, and ending in Los Angeles in September.

Keeping busy: Nick released his self-titled album this past November, while Demi's Confident just dropped on October 16, and their upcoming tour - Future Now: The Tour - kicks off on June 24

Demi was later spotted leaving her Tribecca hotel with boyfriend Wilmer after making an outfit change.

She showed off her enviable figure in an olive green patchwork dress, which featured a low-cut front and was cinched in at the waist with a large belt.

She covered up with the same stylish coat, and accessorized with a pair of strappy, black heels and a large, black leather clutch.

Green goddess: Later on Monday Demi showed off her enviable figure as she changed into a form-fitting olive green dress 

Putting her best foot forward: Demi accessorized her stylish look with a pair of strappy, black heels

Her right hand man: The duo were spotted as they left their Tribecca hotel on Monday

The Cool for the Summer star looked sleek, wearing her raven locks in a side part, and styled straight.

She hid her eyes behind a pair of wayfarer-style black sunglasses, and sported a trendy, peach lipstick.

Wilmer, meanwhile, appeared to be wearing the same plaid button down and distressed jeans that he had sported earlier for the visit to SiriusXM Studios. 

Keeping it simple: Wilmer seemed to be wearing the same plaid button down and distressed jeans as earlier, though he accessorized with a patterned jacket and navy blue scarf 

Polished: The Cool for the Summer singer looked sleek with shiny, straight hair and a bit of peach lipstick