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:
Thomas Puskailer
Table title:
Singles
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Title </th><th colspan=1 rowspan=1 > Published </th><th colspan=1 rowspan=1 > Album </th></tr>
<tr> <td colspan=1 rowspan=1 > 2010 </td><td colspan=1 rowspan=1 > “Always on the Road” </td><td colspan=1 rowspan=1 > 11 September 2010 </td><td colspan=1 rowspan=1 > Make Believe </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2011 </td><td class="highlighted"  colspan=1 rowspan=1 > “Sitting on a Cloud” </td><td colspan=1 rowspan=1 > 4 August 2011 </td><td class="highlighted"  colspan=1 rowspan=1 > Make Believe </td></tr>
<tr> <td colspan=1 rowspan=3 > 2012 </td><td class="highlighted"  colspan=1 rowspan=1 > “By Your Side“ </td><td colspan=1 rowspan=1 > 3 March 2012 </td><td class="highlighted"  colspan=1 rowspan=1 > Make Believe </td></tr>
<tr> <td colspan=1 rowspan=1 > "Moneytree (Miroslav Vrlik Remix)" </td><td colspan=1 rowspan=1 > 8 August 2012 </td><td colspan=1 rowspan=1 > Make Believe </td></tr>
<tr> <td colspan=1 rowspan=1 > “Make Believe“ </td><td colspan=1 rowspan=1 > 29 November 2012 </td><td colspan=1 rowspan=1 > Make Believe </td></tr>
<tr> <td colspan=1 rowspan=2 > 2013 </td><td colspan=1 rowspan=1 > “Som Tvoj“ featuring Eva Mazikova </td><td colspan=1 rowspan=1 > 1 July 2013 </td><td colspan=1 rowspan=1 > single </td></tr>
<tr> <td colspan=1 rowspan=1 > “What About Christmas” </td><td colspan=1 rowspan=1 > 23 Oktober 2013 </td><td colspan=1 rowspan=1 > single </td></tr>
<tr> <td colspan=1 rowspan=7 > 2014 </td><td colspan=1 rowspan=1 > “Don’t Let Go“ </td><td colspan=1 rowspan=1 > 6 February 2014 </td><td colspan=1 rowspan=1 > single </td></tr>
<tr> <td colspan=1 rowspan=1 > “I Feel Good” featuring Mária Čírová </td><td colspan=1 rowspan=1 > official single release tba </td><td colspan=1 rowspan=1 > single </td></tr>
<tr> <td colspan=1 rowspan=1 > “Make This Paradise” </td><td colspan=1 rowspan=1 > 29 April 2014 </td><td colspan=1 rowspan=1 > single </td></tr>
<tr> <td colspan=1 rowspan=1 > “Don’t Let Go (Charlie Clubber Remix)” </td><td colspan=1 rowspan=1 > 29 April 2014 </td><td colspan=1 rowspan=1 > single </td></tr>
<tr> <td colspan=1 rowspan=1 > “Have It All Tonight” </td><td colspan=1 rowspan=1 > 24 June 2014 </td><td colspan=1 rowspan=1 > single </td></tr>
<tr> <td colspan=1 rowspan=1 > “Dance With Me (Hey Pretty Lady)” </td><td colspan=1 rowspan=1 > 29 July 2014 </td><td colspan=1 rowspan=1 > single </td></tr>
<tr> <td colspan=1 rowspan=1 > “Make This Paradise (Soundlab Remix)” </td><td colspan=1 rowspan=1 > 2 September 2014 </td><td colspan=1 rowspan=1 > single </td></tr>
</table>
Question:
What did  Thomas Puskailer do in 2011?
Answer:
Puskailer released album, "Make Believe" consisting of songs "Sitting on a Cloud" in 2011 and "By Your Side".