On 3 October 2018, the group formally announced on their official social media accounts that there would be new music coming soon.

[3] On 19 November 2018, band manager Louis Walsh confirmed the title on The Irish News, calling it their first comeback single and an introduction to their new sound.

"[9] "Hello My Love" is composed in the key of F major and set in common time at a moderate tempo of 122 beats per minute.

If we had to compare it to anything on the Top 40 of late, it'd be in realm of Jess Glynne's All I Am meets Ed Sheeran's Castle on the Hill.

"[11] Aoife Hanna of Bustle expressed the song is filled with self-deprecating humour.

[15] Alicia Adejobi of the Metro said it's a "radio-friendly track that boasts all of Ed's trademarks – a catchy beat and memorable lyrics.

In 2019, the group began promotion of the song on 7 January with a nine-second video clip.

[19] Their first tour together outside UK and Ireland in seven years was on Singapore on 29 January 2019 to 1 February 2019 to promote "Hello My Love".

[20] A phone competition was also made where the fans can leave their voicemail that starts with "Hello My Love" then their follow-up message to a given hotline.

On 11 January 2019, Good Morning Britain introduced the world exclusive short clip of the video.

However, they add in a bit of colour by blowing up a hot air balloon that has a multi-coloured-stripped pattern to it and jamming out inside.

"[9] Carl Kinsella of joe.ie added, "Today, the lads have followed it up with a music video to rival the Westlife classics of old.