But firm favourite Peter still found time to lark around backstage and spend time with some of the other dancers.
In shared pictures from behind the scenes of the popular talent show, Peter and Janette can be seen with big smiles on their faces as they take a break with actress Helen George and her dance partner Aljaž Skorjanec.
Although there must be a teeny bit of rivalry between the couple, at least between the pros, there's also clearly lots of love - especially between real life couple Janette and Aljaž!
Aljaž captioned the happy photo: "Camera block Friday. Grab your popcorn we are going to the movies. @bbcstrictly."
Meanwhile, singer Peter posted a snap with fellow amateur dancer Anthony Agogo and his professional partner Oti Mabuse.
Sharing the picture with his 3.4milllion Twitter followers, he wrote: "With these two beauties backstage at Strictly rehearsal @otimabuse @anthonyogogo11."
Now we know dance rehearsals is hard work, but it also looks like the SCD stars are having lots of fun too!
On Wednesday, Peter shared a cute selfie with his wife Emily MacDonagh from behind the scenes of Strictly spin-off show, It Takes Two.
He tweeted: "Me and Beauty backstage at 'It Takes Two'. About to go live :)) tune in BBC 2."
Pete's devoted fanbase have been showing their support for Peter via Twitter.
One follower tweeted: "@pj_andre can't wait to see ya dance this week & OBVIOUSLY I'll be voting."
Another said: "You always look like you're all getting on so well & having such fun. Look forward to seeing you on Strictly tomorrow xx."
Another Pete devotee wrote: "@pj_andre u are fabulous in #strictly first time I've every watched the programme. You always keep us entertained, whatever it is u do in life. Every time u smile u put a smile on my face. Good luck."
During the first live shows, Peter and Janette came top of the leader board with their Cha Cha to the tune of Christina Aguilera's hit 'Aint No Other Man'.
In week two, the couple just missed top spot behind Jay McGuinness.
This weekend, Peter and Janette will be dancing the Paso Doble to 'He's A Pirate' from Pirates of the Caribbean.
Olympian athlete Iwan Thomas and Ola Jordan were the first couple to leave the competition.
Strictly Come Dancing returns on Saturday 10 October on BBC1 at 6.20pm.
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