Katy Perry shows off her baby bump while performing Daisies as part of Dear Class of 2020 special

Katy Perry was one of many celebrities who took part in YouTube’s Dear Class Of 2020 YouTube special on Sunday.

The 35-year-old singer performed her new single, Daisies, while showing off her baby bump in a form-fitting white dress.   

The four-hour special featured speeches and performances for graduates of 2020 from the likes of The Obamas, Lady Gaga and Beyonce.

Mom-to-be: Katy Perry showcased her growing bump as she performed for the Dear Class of 2020 YouTube special, telling graduates: ‘You are the future’

Growing bump: Katy sported a form-fitting one-shoulder white dress that hugged her new curves as she performed her new single Daisies

Growing bump: Katy sported a form-fitting one-shoulder white dress that hugged her new curves as she performed her new single Daisies 

And Katy, who is expecting her first child with fiancé Orlando Bloom, this summer, said: ‘#DearClassof2020, I hope in the midst of all that is happening in the world, you can take a moment to celebrate the accomplishment of graduating,’ she penned in her preview of the performance.

‘You are the future, and I know you will take everything you’ve learned to make the world a better place. Never let ’em change you.’ 

Katy sported a form-fitting one-shoulder white dress that hugged her new curves. 

Celebration: The 35-year-old singer said: 'I know you will take everything you¿ve learned to make the world a better place. Never let 'em change you'

Celebration: The 35-year-old singer said: ‘I know you will take everything you’ve learned to make the world a better place. Never let ’em change you’

All white on the night: Katy looked incredible as she belted out her latest hit, with her due date fast approaching

All white on the night: Katy looked incredible as she belted out her latest hit, with her due date fast approaching

Wow: She looked perfectly at ease as she used the power of her voice to do good

Wow: She looked perfectly at ease as she used the power of her voice to do good

The singer first thanked former President, Barack Obama in her video, ‘for his inspiring words.’

He had said: ‘Graduation is a big achievement under any circumstances, yours comes as the world is turned upside down by a pandemic and by a country that has been swept up by protests.

‘I can barely imagine how head-spinning these last few months have been for you. None of this is how any of you imagined finishing your final spring at school.’

Katy added: ‘The time has come.’

Thanks: The singer first thanked former President Barack Obama in her video, 'for those inspiring words,' before telling the grads, 'the time has come'

Thanks: The singer first thanked former President Barack Obama in her video, ‘for those inspiring words,’ before telling the grads, ‘the time has come’

Razzle dazzle: She danced in front of a silver glitter backdrop curtain

Razzle dazzle: She danced in front of a silver glitter backdrop curtain 

‘Let’s turn those tassels and make it kind of official. 

‘Whether you’ve got a real cap and a tassel, or an iPhone charger taped onto a pizza box, this is the moment for everyone around the globe to graduate at once,’ she added.

She also reminded the grads that,’ the tassel goes from right to left,’ before the big moment, where a montage is shown of dozens of grads moving their tassels. 

Hair today: Her platinum hair was styled into vintage waves for the occasion

Hair today: Her platinum hair was styled into vintage waves for the occasion

Performance: After the big moment, she started performing her new song Daisies, singing with a white microphone that matched her elegant dress

Performance: After the big moment, she started performing her new song Daisies, singing with a white microphone that matched her elegant dress

Firework: After the song, she stood on a large white grad cap before breaking into her hit 2010 song Firework, along with a montage of grads celebrating from their homes

Firework: After the song, she stood on a large white grad cap before breaking into her hit 2010 song Firework, along with a montage of grads celebrating from their homes

After the big moment, she started performing her new song Daisies, singing with a white microphone that matched her elegant dress.

After the song, she stood on a large white grad cap before breaking into her hit 2010 song Firework, along with a montage of grads celebrating from their homes. 

When the song was done, Perry addressed the grads, stating, ‘Class of 2020, just like your life story, this night is just beginning.’ 

Former President Barack Obama said in a commencement speech that the nationwide protests following the recent deaths of unarmed black women and men including George Floyd were fueled from 'decades worth of anguish, frustration, over unequal treatment and a failure to perform police practices'

Former President Barack Obama said in a commencement speech that the nationwide protests following the recent deaths of unarmed black women and men including George Floyd were fueled from ‘decades worth of anguish, frustration, over unequal treatment and a failure to perform police practices’

From the heart: Beyonce delivered a truly emotional and pointed commencement address as part of YouTube's special web event

From the heart: Beyonce delivered a truly emotional and pointed commencement address as part of YouTube’s special web event

Meaningful: Michelle Obama also appeared with her husband and alone to speak to graduates

Meaningful: Michelle Obama also appeared with her husband and alone to speak to graduates

Lighter note: Taylor Swift also shared her thoughts

Lighter note: Taylor Swift also shared her thoughts

‘A global graduation deserves a party for the ages, and we’ve got one coming up with BTS and CNCO,’ she added.

‘This is all about you, so kick your parents out,’ she joked. ‘It’s your time to party. So here’s Megan Thee Stallion,’ she added. 

Katy is expecting to welcome her first child in the coming weeks. She has been isolating with Orlando Bloom, his son, Flynn, nine, (who he shares with ex Miranda Kerr), and her two nieces. 

Change of plans: 'My plan pre-COVID was, you know, just to keep going and put out a record in the summer until my waters break, then I was going to transition into being a mum'

Change of plans: ‘My plan pre-COVID was, you know, just to keep going and put out a record in the summer until my waters break, then I was going to transition into being a mum’ 

Parents: Katy is expecting to welcome her first child in the coming weeks. She has been isolating with Orlando Bloom, his son, Flynn, nine, (who he shares with ex Miranda Kerr), and her two nieces

Parents: Katy is expecting to welcome her first child in the coming weeks. She has been isolating with Orlando Bloom, his son, Flynn, nine, (who he shares with ex Miranda Kerr), and her two nieces