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:
Jet Coaster Love
Table title:
Release
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Country </th><th colspan=1 rowspan=1 > Date </th><th colspan=1 rowspan=1 > Format </th><th colspan=1 rowspan=1 > Label </th></tr>
<tr> <th class="highlighted"  colspan=1 rowspan=2 > Japan </th><td colspan=1 rowspan=1 > March 16, 2011 </td><td colspan=1 rowspan=1 > Digital download </td><td class="highlighted"  colspan=1 rowspan=2 > Universal Sigma </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > April 6, 2011 </td><td colspan=1 rowspan=1 > CD single </td></tr>
</table>
Question:
When was Jet Coaster Love released in Japan and by what label?
Answer:
Universal Sigma released Jet Coaster Love on April 6, 2011 in Japan.