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:
List of awards and nominations received by Lady Antebellum
Table title:
American Country Awards
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Recipient </th><th colspan=1 rowspan=1 > Award </th><th colspan=1 rowspan=1 > Result </th></tr>
<tr> <th class="highlighted"  colspan=1 rowspan=7 > 2010 </th><td class="highlighted"  colspan=1 rowspan=2 > Lady Antebellum </td><td class="highlighted"  colspan=1 rowspan=1 > Artist of the Year </td><td class="highlighted"  colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Duo/Group of the Year </td><td class="highlighted"  colspan=1 rowspan=1 > Won </td></tr>
<tr> <td colspan=1 rowspan=1 > Need You Now </td><td colspan=1 rowspan=1 > Album of the Year </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=4 > "Need You Now" </td><td colspan=1 rowspan=1 > Single of the Year </td><td colspan=1 rowspan=1 > Won </td></tr>
<tr> <td colspan=1 rowspan=1 > Single by a Duo/Group </td><td colspan=1 rowspan=1 > Won </td></tr>
<tr> <td colspan=1 rowspan=1 > Music Video of the Year </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Music Video by a Duo/Group </td><td colspan=1 rowspan=1 > Won </td></tr>
<tr> <th colspan=1 rowspan=3 > 2011 </th><td colspan=1 rowspan=2 > Lady Antebellum </td><td colspan=1 rowspan=1 > Artist of the Year </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Duo/Group Artist of the Year </td><td colspan=1 rowspan=1 > Won </td></tr>
<tr> <td colspan=1 rowspan=1 > "Hello World" </td><td colspan=1 rowspan=1 > Music Video by a Duo/Group/Collaboration </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <th colspan=1 rowspan=6 > 2012 </th><td colspan=1 rowspan=2 > Lady Antebellum </td><td colspan=1 rowspan=1 > Artist of the Year </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Duo/Group Artist of the Year </td><td colspan=1 rowspan=1 > Won </td></tr>
<tr> <td colspan=1 rowspan=1 > Own the Night </td><td colspan=1 rowspan=1 > Album of the Year </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > "We Owned the Night" </td><td colspan=1 rowspan=1 > Single by a Duo/Group </td><td colspan=1 rowspan=1 > Won </td></tr>
<tr> <td colspan=1 rowspan=1 > "Dancing Away with My Heart" </td><td colspan=1 rowspan=1 > Music Video by a Duo/Group/Collaboration </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=2 > Lady Antebellum </td><td colspan=1 rowspan=1 > Touring Artist of the Year </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <th colspan=1 rowspan=2 > 2013 </th><td colspan=1 rowspan=1 > Duo/Group Artist of the Year </td><td colspan=1 rowspan=1 > Won </td></tr>
<tr> <td colspan=1 rowspan=1 > "Downtown" </td><td colspan=1 rowspan=1 > Single by a Duo/Group </td><td colspan=1 rowspan=1 > Won </td></tr>
</table>
Question:
What was Lady Antebellum nominated for at the American Country Awards?
Answer:
In 2010, Lady Antebellum nominated for Country Music Awards Artist of the Year and won Duo or Group.