It seems that Camila Cabello isn't the only singer from Fifth Harmony to be releasing solo material recently.
This week, Ally Brooke from the girl group announced that she will be releasing a solo single with German DJ Topic, and it drops tomorrow (26th January). The song is titled 'Perfect' and it follows on from her 2016 collaboration with Lost Kings and A$AP Ferg on 'Look At Us Now'.
This news is very exciting for fans and at the time of writing, the tweet has been liked over 16,000 times and received over 2,000 comments.
Take a look at the biggest collaborations from 2017 below:
The biggest collabs of 2017
1 of 23Ed Sheeran and Beyoncé: 'Perfect'
After delighting fans with his album track 'Perfect', Ed Sheeran decided to give it a little Christmas sprinkle when he teamed up with Beyoncé for a new version of the single.
2 of 23Selena Gomez and Marshmello: 'Wolves'
After releasing her amazing track 'Bad Liar', Selena Gomez worked with music producer Marshmello on the hit 'Wolves'.
3 of 23Little Mix and CNCO: 'Reggaeton Lento'
Little Mix joined forces with Latino band CNCO for their upbeat track 'Reggaeton Lento'. The girls sing Spanish lyrics in the track and they performed it live together for the first time at The X Factor final.
4 of 23Justin Bieber, Luis Fonsi and Daddy Yankee: 'Despacito'
One of the biggest hits of 2017 came when Justin Bieber lent his vocals to Daddy Yankee and Luis Fonsi's MASSIVE Spanish single 'Despacito'. We are still singing it now!
5 of 23Liam Payne and Zedd: 'Get Low'
Former One Direction singer Liam Payne teamed up with German producer Zedd on his second solo single 'Get Low' and it was a massive hit with fans.
6 of 23Craig David and Bastille: 'I Know You'
In what was perhaps the strangest collaboration of 2017, Craig David teamed up with Bastille and the results were brilliant! Dropping the single 'I Know You', the two music genres worked amazingly.
7 of 23Rak-Su, Naughty Boy and Wyclef Jean: 'Dimelo'
X Factor 2017 winners Rak-Su were fortunate enough to work with Naughty Boy and Wyclef Jean on their winning single 'Dimelo'. It's so catchy!
8 of 23Camila Cabello and Young Thug: 'Havana'
One of the catchiest songs of the year came from former Fifth Harmony member Camila Cabello. The singer worked with Young Thug on the track 'Havana'.
9 of 23Calvin Harris, Katy Perry, Big Sean and Pharrell Williams: 'Feels'
2017 was the year of collaborations for Scottish DJ Calvin Harris. He teamed up with Katy Perry, Big Sean and Pharrell Williams on the track 'Feels'.
10 of 23ZAYN and Sia: 'Dusk Till Dawn'
Former One Direction singer ZAYN worked with Sia to record the single 'Dusk Till Dawn'. The amazing track featured on the movie The Mountain Between Us featuring Kate Winslet and Idris Elba.
11 of 23Eminem and Beyoncé: 'Walk On Water'
Out of nowhere, rapper Eminem dropped his comeback single 'Walk On Water' featuring Beyoncé.
12 of 23Louis Tomlinson and Bebe Rexha: 'Back To You'
Former One Direction star Louis Tomlinson delighted his fans in 2017 when he teamed up with American singer Bebe Rexha on the track 'Back To You'.
13 of 23Avicii and Rita Ora: 'Lonely Together'
In a comeback year of music for both of them, Rita Ora and Avicii delivered the amazing single 'Lonely Together'.
14 of 23Calvin Harris, Frank Ocean and Migos: 'Slide'
In what was another amazing Calvin Harris collab, the 33-year-old worked with Frank Ocean and Migos to drop the summer track 'Feels'.
15 of 23Sigala and Ella Eyre: 'Came Here For Love'
He's worked with a number of people in the past, but this year DJ Sigala teamed up with Ella Eyre. The 23-year-old showed off her stunning vocals on the track 'Came Here For Love'.
16 of 23The Weeknd and Daft Punk: 'I Feel It Coming'
The Weeknd and electronic duo Daft Punk teamed up to deliver the amazing track 'I Feel It Coming'.
17 of 23Clean Bandit and Julia Michaels: 'Miss You'
Clean Bandit love a collaboration! This year they teamed up with American singer songwriter Julia Michaels on the emotional single 'Miss You'.
18 of 23Katy Perry and Nicki Minaj: 'Swish Swish'
Katy Perry got her friend Nicki Minaj to help her out on the single 'Swish Swish'.
19 of 23Selena Gomez and Kygo: 'It Ain't Me'
Pop princess Selena Gomez and Norwegian DJ Kygo created 'It Ain't Me' and it was hugely popular with fans of the pair.
20 of 23Tinie Tempah and Jess Glynne: 'Not Letting Go'
British singers Tinie Tempah and Jess Glynne made the perfect summer track when they released 'Not Letting Go'.
21 of 23DJ Khalid and Rihanna: 'Wild Thoughts'
Despite not releasing much solo music in 2017, Rihanna featured on DJ Khalid's single 'Wild Thoughts', and EVERYONE loved it.
22 of 23Stormzy and MNEK: 'Blinded By Your Grace Pt. 2'
After a seriously impressive 2017, Stormzy released his single 'Blinded By Your Grace Pt. 2' featuring MNEK towards the end of the year.
23 of 23Ed Sheeran and Eminem: ''River'
To end the year off, Ed Sheeran worked with his idol Eminem on the track 'River' which features on the rapper's new album 'Revival'.
Recently ex-bandmate Camila Cabello stated that she felt 'shut out' after wanting to stay in the group while working on a solo album. She said,
“It became clear that it was not possible to do solo stuff and be in the group at the same time.”
However, current Fifth Harmony member Dinah Jane also found success last year after teaming up with RedOne, Daddy Yankee and French Montana for their song 'Boom Boom'.
The group seem to have changed their mind when it comes to solo projects as Normani Kordei is also gearing up to release a song with singer Khalid in March, which will be featured on the Love, Simon film soundtrack.
Earlier this month the girls became the first girl group to surpass five billion collective views on YouTube. Not only that but they hold the 31st and 24th most viewed videos of all time on YouTube. Pretty impressive!