Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Jelly Christmas
Table title:
Release history
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Single </th><th colspan=1 rowspan=1 > Region </th><th colspan=1 rowspan=1 > Format </th><th colspan=1 rowspan=1 > Date </th><th colspan=1 rowspan=1 > Label </th></tr>
<tr> <td colspan=1 rowspan=1 > Jelly Christmas </td><td colspan=1 rowspan=6 > South Korea, worldwide </td><td colspan=1 rowspan=6 > digital download </td><td colspan=1 rowspan=1 > December 6, 2010 </td><td class="highlighted"  colspan=1 rowspan=6 > Jellyfish Entertainment </td></tr>
<tr> <td colspan=1 rowspan=1 > Jelly Christmas 2011 </td><td colspan=1 rowspan=1 > December 2, 2011 </td></tr>
<tr> <td colspan=1 rowspan=1 > Jelly Christmas 2012 Heart Project </td><td colspan=1 rowspan=1 > December 5, 2012 </td></tr>
<tr> <td colspan=1 rowspan=1 > 겨울 고백 (Jelly Christmas 2013) </td><td colspan=1 rowspan=1 > December 12, 2013 </td></tr>
<tr> <td colspan=1 rowspan=1 > Jelly Christmas 2015 – 4랑 </td><td colspan=1 rowspan=1 > December 15, 2015 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Jelly Christmas 2016 </td><td class="highlighted"  colspan=1 rowspan=1 > December 13, 2016 </td></tr>
</table>
Question:
What did Jellyfish Entertainment release on December 13th, 2016?
Answer:
On December 13, 2016, Jellyfish Entertainment released their Jelly Christmas 2016.