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Kpop Wiki

Toheart (투하트) was a collaboration duo between SHINee's Key and Infinite's Woohyun, to signal a collaboration between SM Entertainment and Woollim Entertainment. They debuted on March 3, 2014 with the mini album 1st Mini Album.


2014: Debut and "Tell Me Why"

In January 2014, following the merger of Woollim and SM in August 2013, it was confirmed that Key and Woohyun was currently recording for a collaboration, with the album to be out as early as February or as late as April.[1] On February 20, a prologue video was then released, revealing that the unit's name would be Toheart.[2] On March 3, they debuted with the release of their mini album, 1st Mini Album.

On April 7, they then released their first digital single "Tell Me Why", which included a broadcasting and acoustic version of the song in the first mini album.

The duo then proceeded to disband in 2014.


Name Years active(s)
Woohyun 2014
Key 2014


Mini albums

  • 1st Mini Album (2014)

Digital singles

  • "Tell Me Why" (2014)


Official links