American Idol: Katy Perry drops to her knees and sobs during proposal to singer ...

Katy Perry completely lost it at a surprise proposal onstage during Monday's episode of American Idol.

Johanna Jones, 23, had been the last of 70 contestants to perform solo, gushing about her boyfriend who could not be there because of finals.

Her beau Matt Zavoral, however, strolled onstage after her performance of Chris Isaak's Wicked Game, with the contestant looking genuinely stunned.

Lost it: Katy Perry lost it when contestant Johanna Jones was proposed to by her boyfriend on Monday's  episode of American Idol

Lost it: Katy Perry lost it when contestant Johanna Jones was proposed to by her boyfriend on Monday's  episode of American Idol

'I haven't been here all week because of exams, but I couldn't wait another day,' said Matt, who drove 11 hours to get to .

Getting down on one knee, he said: 'Johanna, you're the love of my life. Will you marry me?'

Johanna's mom freaked out, shouting throughout: 'This is not happening right now! Shut up!'

But that was nothing compared to Katy, 34, who let out loud, theatrical sobs and even dropped to her knees as she cried.

One knee: Matt Zavoral, strolled onto the stage and proposed to Johanna after her performance

One knee: Matt Zavoral, strolled onto the stage and proposed to Johanna after her performance

Surprise proposal: Johanna was shocked that Matt was there after telling producers he had final exams

Surprise proposal: Johanna was shocked that Matt was there after telling producers he had final exams

Tears flowing: Katy dropped to her knees and sobbed as Matt proposed to Johanna

Tears flowing: Katy dropped to her knees and sobbed as Matt proposed to Johanna

'Alright, get off the stage,' she finally called out jokingly, running up to hug them and gushing 'Oh my God!' at the ring.

'He did ask me first,' Johanna's dad called out. 'He got the thumbs up.'

After the couple left the stage, Katy continued her sobbing, saying: 'I need makeup.'

Big hug: The pop star hugged Johanna after she accepted the marriage proposal

Big hug: The pop star hugged Johanna after she accepted the marriage proposal

'Why won't someone love me like that?' she asked, with her of course now engaged to star Orlando Bloom, 42.

Even before the proposal, Johanna had called Matt the 'most supportive, loving, awesome guy I've ever met.'

'I don't want to get ahead of myself, but I think he's probably the one,' she had said. 'But we don't need to tell him that quite yet – I mean, I don't know if he knows, but I know.'

Cell phone: Luke Bryan was scolded by Katy as he recorded her crying on his cell phone

Cell phone: Luke Bryan was scolded by Katy as he recorded her crying on his cell phone

Solo performance: Johanna sang solo as 30 contestants were sent home Monday

Solo performance: Johanna sang solo as 30 contestants were sent home Monday 

She said not being able to be there had 'broke his heart' – admitting, 'he was crying, actually' – with Matt later saying it took 11 hours to drive there.

With 30 singer going home that night, Johanna said of her engagement: 'No matter what happens, I'm going to go home smiling tonight.'

But when she was told she was one of the 40 through to the next round in Hawaii, she gushed: 'This is the best day of my life!'

The ring: The singer showed off her engagement ring while kissing Matt

The ring: The singer showed off her engagement ring while kissing Matt

Best day: Johanna gushed that it was the best day of her life as she accepted Matt's proposal and advanced to the next round in Hawaii

Best day: Johanna gushed that it was the best day of her life as she accepted Matt's proposal and advanced to the next round in Hawaii

The 70 contestants were divided into three rooms – with room two sent home after Lionel Richie praised them for beating 'thousand and thousands' of people t get there.

Luke Bryan, 42, had left some of the successful singers in room 3 in tears thinking they were going home, too.

'I am sorry to let you guys know that your time here in is over,' he told them in a sad-sounding voice, leaving a long pause as sobs broke out.

The news:  Luke Bryan, Katy and Lionel Richie spoke to the remaining singers separated into three rooms to let them know if they advanced

The news:  Luke Bryan, Katy and Lionel Richie spoke to the remaining singers separated into three rooms to let them know if they advanced

'Cos you're going to Hawaii, you made it!' he finally told them.

One of those sent home was Juan Pablo, who was previously warned by Katy that he was 'teetering' on being too 'queso fundido,' for cheesy.

He had seemed confident that his solo performance of Lady Gaga's Million Reasons would get him through, however, saying it went 'perfectly.'

Good effort: Juan Pablo was sent home after his rendition of Lady Gaga's Million Reasons

Good effort: Juan Pablo was sent home after his rendition of Lady Gaga's Million Reasons

'Presentation is cool. Vocally it's not great,' Katy had said to the other judges, who agreed on sending him home.

Gaba, 19, was again supported by both her mom and her egg donor as she played Jealous by Labrinth – but was another in the group leaving.

It was also the end for Austin Michael Robinson, 15, who took a huge risk by making a last-minute song switch because he was worried about high notes in his original choice, Dan + Shay's Speechless.

Tough decisions: The judges had to narrow the field during another brutal Hollywood Week

Tough decisions: The judges had to narrow the field during another brutal Week

He switched to Chris Stapleton's Parachute just minutes before taking the stage – with no rehearsals – with Katy predicting his bad news as she admitted: 'That was his worst performance. Vocally it's not great.'

With so many going home, Katy had earlier warned the contestants against singing original songs.

'Sometimes they are not very good and people have not had the guts to tell you that they're not,' she said.

Sage advice: Katy cautioned the contestants about singing original songs

Sage advice: Katy cautioned the contestants about singing original songs

Eddie Island, 25, had insisted it was 'worth the risk' because he is 'so passionate' about his own material – but Katy insisted: 'He's got a great voice but that was a really bad song,'

Lionel asked: 'Why if you've got one shot in life would you sing ... I just keep thinking what are we doing here.'

Eddie stuck by his decision, saying: 'Playing my music may have ended my

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