On December 12, 2016, Son Tung M-TP officially announced the release of his new song, "Lạc trôi" and his leaving his former management company, WePro, and started his independent career.

[4][5] On January 21, 2017, the copyright of the song was bought by Happy Entertainment and became the official soundtrack for the film Lục Vân Tiên: Tuyệt đỉnh Kungfu.

Creating a completely different image from the previous MVs, Son Tung transformed into a protagonist with long hair dyed in smoke color.

[10] On the Zing Mp3 online music site, Son Tung's “Lạc trôi” has been leading the song chart for the first week of 2017.

[12] On March 3, 60 days after the music video was released on YouTube, the song "Lạc trôi" received more than 100 million views, becoming the Asian fastest 100 million viewer MV (if excluding Psy's music videos), breaking the previous 71-day record set by the "TT" song of Korea's Twice girl band.

In the list of the most viewed music videos on YouTube on January 2, 2017, "Lạc trôi" came in at number six and was Asia's most watched MV, went over Bruno Mars's "24K Magic" and Justin Bieber's "Sorry".

[13][14] On December 31, 2016, Son Tung M-TP held a performance of his new song under the witness of over 3,000 people and formally introduced the new music project "Lạc trôi".

[17] On the evening of January 3, Son Tung M-TP appeared on the 19th Green Wave Music Awards, at Lan Anh Theater in Ho Chi Minh City.

This is the first time Son Tung M-TP has performed the song "Lạc trôi" on a musical stage since its debut on January 1.