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:
People in Planes
Table title:
Singles
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Song </th><th colspan=1 rowspan=1 > US Mod </th><th colspan=1 rowspan=1 > Album </th></tr>
<tr> <td colspan=1 rowspan=1 > 2000 </td><td colspan=1 rowspan=1 > "E.T.A" (as Robots in the Sky) </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > non album single </td></tr>
<tr> <td colspan=1 rowspan=2 > 2001 </td><td colspan=1 rowspan=1 > "Mr. Bishi" (as Tetra Splendour) </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=3 > Splendid Animation </td></tr>
<tr> <td colspan=1 rowspan=1 > "De-rail" (as Tetra Splendour) </td><td colspan=1 rowspan=1 > — </td></tr>
<tr> <td colspan=1 rowspan=1 > 2002 </td><td colspan=1 rowspan=1 > "Pollenfever" (as Tetra Splendour) </td><td colspan=1 rowspan=1 > — </td></tr>
<tr> <td colspan=1 rowspan=1 > 2005 </td><td colspan=1 rowspan=1 > "Talking Heads" </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > non album single </td></tr>
<tr> <td colspan=1 rowspan=3 > 2006 </td><td colspan=1 rowspan=1 > "If You Talk Too Much (My Head Will Explode)" </td><td colspan=1 rowspan=1 > 33 </td><td colspan=1 rowspan=3 > As Far As The Eye Can See </td></tr>
<tr> <td colspan=1 rowspan=1 > "Barracuda" </td><td colspan=1 rowspan=1 > — </td></tr>
<tr> <td colspan=1 rowspan=1 > "Falling by the Wayside" </td><td colspan=1 rowspan=1 > — </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=2 > 2008 </td><td colspan=1 rowspan=1 > "Mayday (M'aidez)" </td><td colspan=1 rowspan=1 > — </td><td class="highlighted"  colspan=1 rowspan=4 > Beyond the Horizon </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > "Pretty Buildings" </td><td colspan=1 rowspan=1 > — </td></tr>
<tr> <td colspan=1 rowspan=2 > 2009 </td><td colspan=1 rowspan=1 > "Last Man Standing" </td><td colspan=1 rowspan=1 > 30 </td></tr>
<tr> <td colspan=1 rowspan=1 > "Know By Now" </td><td colspan=1 rowspan=1 > — </td></tr>
<tr> <th colspan=10 rowspan=1 > "—" denotes a release that did not chart. </th></tr>
</table>
Question:
What was happening People in Planes in 2008?
Answer:
People in Planes's singles "Pretty Buildings" and "Mayday (M'aidez)" from "Beyond the Horizon" were released in 2008.